- 1 Alpine Division Taurinense
- 1 Alpini Regiment
- 1 Cent WWII (Dutch coin)
- 1 Mountain Artillery Regiment (Italy)
- 1 vs 40 (Zipang manga)
- 1. Jagd-Division
- 1.1"/75 caliber gun
- 10 cm K 17
- 10.5 cm FlaK 38
- 10.5 cm leFH 16
- 10.5 cm leFH 18/40
- 10.5 cm leFH 18
- 10.5 cm leFH 18M
- 10.5 cm Leichtgeschütz 40
- 10.5 cm Leichtgeschütz 42
- 10.5 cm schwere Kanone 18
- 100 mm field gun M1944 (BS-3)
- 100th Division (United States)
- 100th Guards Rifle Division
- 100th Light Infantry Division (Germany)
- 101st Airborne Division (United States)
- 101st Infantry Division (France)
- 101st Rifle Division (Soviet Union)
- 101st SS Heavy Panzer Detachment
- 102nd Fortress Division (France)
- 102nd Infantry Division (Germany)
- 102nd Infantry Division (United States)
- 103rd Infantry Division (United States)
- 104th Division (United States)
- 105 mm Howitzer M3
- 106th Battalion (Canada)
- 106th Division (Imperial Japanese Army)
- 106th Infantry Division (United States)
- 107 mm divisional gun M1940 (M-60)
- 107 mm gun M1910/30
- 1077th Anti-Aircraft Regiment (Soviet Union)
- 10H64
- 10th Armored Division (United States)
- 10th Armoured Cavalry Brigade (Poland)
- 10th Armoured Division (United Kingdom)
- 10th Army (Soviet Union)
- 10th arrondissement of Paris
- 10th Canadian Infantry Brigade
- 10th Division (Australia)
- 10th Division (Imperial Japanese Army)
- 10th Indian Infantry Division
- 10th Infantry Division (Germany)
- 10th Infantry Division (Poland)
- 10th Marine Regiment (United States)
- 10th Motorized Cavalry Brigade (Poland)
- 10th Mountain Division (United States)
- 10th Panzer Division (Germany)
- 10th Reconnaissance Group (United States)
- 10th SS Panzer Division Frundsberg
- 10TP
- 110th Infantry Division (Germany)
- 110th Rifle Division
- 112 Gripes about the French
- 112th Division (People's Republic of China)
- 113th Division (People's Republic of China)
- 114th Division (Imperial Japanese Army)
- 114th Division (People's Republic of China)
- 115th Division (People's Republic of China)
- 116th Division (People's Republic of China)
- 116th Panzer Division (Germany)
- 117th (Eastern Townships) Battalion, CEF
- 117th Division (People's Republic of China)
- 118th (North Waterloo) Battalion, CEF
- 118th Division (People's Republic of China)
- 118th General Hospital US Army
- 119th (Algoma) Battalion, CEF
- 119th Division (People's Republic of China)
- 11th (East Africa) Division
- 11th Airborne Division (United States)
- 11th Armored Division (United States)
- 11th Armoured Division (United Kingdom)
- 11th Army (Soviet Union)
- 11th Army Group
- 11th Division (Imperial Japanese Army)
- 11th Guards Army
- 11th Indian Infantry Division
- 11th Panzer Division (Germany)
- 11th SS Panzer Army
- 11th SS Volunteer Panzergrenadier Division Nordland
- 11th/28th Battalion, Royal Western Australia Regiment
- 12 Alpini Regiment
- 12.8 cm FlaK 40
- 12.8 cm PaK 44
- 120 mm M1 gun
- 120th (City of Hamilton) Battalion, CEF
- 120th Division (People's Republic of China)
- 121st (Western Irish) Battalion, CEF
- 121st Engineer Battalion (United States)
- 122 mm gun M1931/37 (A-19)
- 122 mm howitzer M1909/37
- 122 mm howitzer M1910/30
- 122 mm howitzer M1938 (M-30)
- 122nd Battalion, CEF
- 123rd (Royal Grenadiers) Battalion, CEF
- 124th (Governor General's Body Guard) Battalion, CEF
- 124th Division (People's Republic of China)
- 125th Battalion, CEF
- 125th Division (People's Republic of China)
- 126th (Peel) Battalion, CEF
- 126th Division (People's Republic of China)
- 127th (12th York Rangers) Battalion, CEF
- 128th Battalion, CEF
- 129th (Wentworth) Battalion, CEF
- 12th (Eastern) Division
- 12th Armored Division (United States)
- 12th Army (Soviet Union)
- 12th Division (Imperial Japanese Army)
- 12th Infantry Division (Germany)
- 12th Infantry Regiment (United States)
- 12th Panzer Division (Germany)
- 12th SS Panzer Division Hitlerjugend
- 13 JG 52
- 13 Rue Madeleine
- 13. Unterseebootsflottille
- 13.2 mm Hotchkiss machine gun
- 130th (Lanark and Renfrew) Battalion, CEF
- 131st Battalion, CEF
- 132nd (North Shore) Battalion, CEF
- 133rd (Norfolk's Own) Battalion, CEF
- 134th (48th Highlanders) Battalion, CEF
- 135th (Middlesex) Battalion, CEF
- 136th (Durham) Battalion, CEF
- 137th Battalion, CEF
- 138mm/40 Modèle 1927 gun
- 138th Battalion, CEF
- 139th (Northumberland) Battalion, CEF
- 13th Airborne Division (United States)
- 13th Armored Division (United States)
- 13th Army (Soviet Union)
- 13th Battalion, CEF
- 13th Division (Imperial Japanese Army)
- 13th Foreign Legion Demi-Brigade
- 13th Guards Rifle Division
- 13th Panzer Division (Germany)
- 13th Waffen Mountain Division of the SS Handschar (1st Croatian)
- 140th (St. John's Tigers) Battalion, CEF
- 140th Division (Imperial Japanese Army)
- 141st Battalion, CEF
- 141st Reserve Division (Germany)
- 142nd (London's Own) Battalion, CEF
- 142nd Division (Imperial Japanese Army)
- 143rd (B.C. Bantams) Battalion, CEF
- 143rd Division (Imperial Japanese Army)
- 144th (Winnipeg Rifles) Battalion, CEF
- 145th Battalion, CEF
- 146th Battalion, CEF
- 147th (Grey) Battalion, CEF
- 148th Battalion, CEF
- 148th Division (People's Republic of China)
- 148th Reserve Division (Germany)
- 149th Battalion, CEF
- 149th Division (People's Republic of China)
- 14th Armored Division (United States)
- 14th Army (Soviet Union)
- 14th Army involvement in Transnistria
- 14th Division (Imperial Japanese Army)
- 14th Indian Infantry Division
- 14th Infantry Division (Germany)
- 14th Infantry Division (Poland)
- 14th Mixed Brigade (Imperial Japanese Army)
- 14th Panzer Division (Germany)
- 14th Waffen Grenadier Division of the SS Galicia (1st Ukrainian)
- 15 cm Kanone 18
- 15 cm sFH 13
- 15 cm sFH 18
- 15 cm sIG 33
- 150th (Carabiniers Mont Royal) Battalion, CEF
- 150th Division (People's Republic of China)
- 150th Infantry Brigade (United Kingdom)
- 150th Rifle Division (Soviet Union)
- 151st (Central Alberta) Battalion, CEF
- 151st Infantry Brigade (United Kingdom)
- 152 mm gun M1910/30
- 152 mm gun M1910/34
- 152 mm gun M1935 (Br-2)
- 152 mm howitzer-gun M1937 (ML-20)
- 152 mm howitzer M1909/30
- 152 mm howitzer M1910/37
- 152 mm howitzer M1938 (M-10)
- 152 mm howitzer M1943 (D-1)
- 152 mm mortar M1931 (NM)
- 152mm SpGH DANA
- 152nd Battalion, CEF
- 152nd Infantry Brigade (United Kingdom)
- 153rd (Wellington) Battalion, CEF
- 153rd Infantry Brigade (United Kingdom)
- 153rd Rifle Division
- 154th Battalion, CEF
- 154th Infantry Brigade (United Kingdom)
- 155 mm Long Tom
- 155th (Quinte) Battalion, CEF
- 156th (Leeds and Grenville) Battalion, CEF
- 157th (Simcoe Foresters) Battalion, CEF
- 158th (Duke of Connaught's Own) Battalion, CEF
- 159th (1st Algonquins) Battalion, CEF
- 15th (Scottish) Division
- 15th Airborne Corps
- 15th Army Group
- 15th arrondissement of Paris
- 15th Division (Imperial Japanese Army)
- 15th Infantry Division (Poland)
- 15th Waffen Grenadier Division of the SS (1st Latvian)
- 16 inch Coast Gun M1919
- 16"/50 caliber Mark 7 gun
- 160th (Bruce) Battalion, CEF
- 161st (Huron) Battalion, CEF
- 161st Infantry Division (Germany)
- 162nd Battalion, CEF
- 163rd (Canadien-Français) Battalion, CEF
- 163rd Infantry Division (Germany)
- 164th (Halton and Dufferin) Battalion, CEF
- 164th Infantry Division (Germany)
- 164th Infantry Regiment (United States)
- 165th (French Acadian) Battalion, CEF
- 166th (Queen's Own Rifles of Canada) Battalion, CEF
- 167th (Canadien-Français) Battalion, CEF
- 168th Battalion, CEF
- 169th Battalion, CEF
- 169th Infantry Division (Germany)
- 16th Armored Division (United States)
- 16th arrondissement of Paris
- 16th Battalion, Royal Western Australia Regiment
- 16th Division (Imperial Japanese Army)
- 16th Infantry Division (Germany)
- 16th Rifle Division (Soviet Union)
- 16th SS Panzergrenadier Division Reichsführer-SS
- 16th Street Baptist Church bombing
- 17 cm Kanone 18
- 170th (Mississauga Horse) Battalion, CEF
- 171st (Quebec Rifles) Battalion, CEF
- 172nd (Rocky Mountain Rangers) Battalion, CEF
- 173rd Battalion, CEF
- 174th (Cameron Highlanders of Canada) Battalion, CEF
- 175th Battalion, CEF
- 176th (Niagara Rangers) Battalion, CEF
- 176th Infantry Division (Germany)
- 177th (Simcoe Foresters) Battalion, CEF
- 178th (Canadien-Français) Battalion, CEF
- 179th (Cameron Highlanders of Canada) Battalion, CEF
- 17th Airborne Division (United States)
- 17th arrondissement of Paris
- 17th Division (Imperial Japanese Army)
- 17th Infantry Division (Germany)
- 17th Infantry Division (India)
- 17th Panzer Division (Germany)
- 17th SS Panzergrenadier Division Götz von Berlichingen
- 180th (Sportsmen) Battalion, CEF
- 180th Division (People's Republic of China)
- 181st Battalion, CEF
- 182nd (Ontario County) Battalion, CEF
- 183rd (Manitoba Beavers) Battalion, CEF
- 183rd Volksgrenadier Division (Germany)
- 184th Battalion, CEF
- 184th Rifle Division
- 185th (Cape Breton Highlanders) Battalion, CEF
- 186th (Kent) Battalion, CEF
- 187th (Central Alberta) Battalion, CEF
- 188th (Saskatchewan) Battalion, CEF
- 189th Battalion, CEF
- 18th Army (Soviet Union)
- 18th Army Group
- 18th Division (Imperial Japanese Army)
- 18th Infantry Division (France)
- 18th Infantry Division (Germany)
- 18th Infantry Division (Poland)
- 18th Panzer Division (Germany)
- 190th (Winnipeg Rifles) Battalion, CEF
- 191st (South Alberta) Battalion, CEF
- 192nd Battalion, CEF
- 1938 Changsha Fire
- 1939-40 Winter Offensive
- 1939 Tarnow rail station bomb attack
- 193rd (Nova Scotia Highlanders) Battalion, CEF
- 193rd Rifle Division (Soviet Union)
- 1940-1944 insurgency in Chechnya
- 1941 (film)
- 1941 Iraqi coup d'état
- 1941 Odessa massacre
- 1942 (video game)
- 1942 Luxembourgian general strike
- 1942: Joint Strike
- 1942: The Pacific Air War
- 1943 Naples post office bombing
- 1943 steel cent
- 1943: The Battle of Midway
- 1944-1945 Killings in Bačka
- 1944 in France
- 1944: The Loop Master
- 1945 (novel)
- 1945 Prime Minister's Resignation Honours
- 194th (Edmonton Highlanders) Battalion, CEF
- 1951 Women's European Volleyball Championship
- 1956 FIVB Men's World Championship
- 195th (City of Regina) Battalion, CEF
- 196th (Western Universities) Battalion, CEF
- 196th Division (People's Republic of China)
- 1972 European Indoor Championships in Athletics
- 1979 Men's European Volleyball Championship
- 197th (Vikings of Canada) Battalion, CEF
- 197th Division (People's Republic of China)
- 1980 IAAF World Cross Country Championships
- 1981 European Indoor Championships in Athletics
- 1986 FIVB Men's World Championship
- 198th (Canadian Buffs) Battalion, CEF
- 198th Division (People's Republic of China)
- 1992 World Artistic Gymnastics Championships
- 1994 European Indoor Championships in Athletics
- 1995 strikes in France
- 1995 UEFA Cup Winners' Cup Final
- 1996 UEFA Cup Winners' Cup Final
- 1996 UEFA Super Cup
- 1997 IAAF World Indoor Championships
- 1997 UEFA Cup Winners' Cup Final
- 1997 World Judo Championships
- 199th (Duchess of Connaught's Own Irish Rangers) Battalion, CEF
- 19th (Central Ontario) Battalion, CEF
- 19th Division (Imperial Japanese Army)
- 19th Infantry Division (India)
- 19th Infantry Division Gavninana
- 19th Panzer Division (Germany)
- 19th Waffen Grenadier Division of the SS (2nd Latvian)
- 1st (African) Division
- 1st Air Fleet of the Imperial Japanese Navy
- 1st Armored Division (France)
- 1st Armored Division (United States)
- 1st Armoured Brigade (Poland)
- 1st Armoured Brigade (United Kingdom)
- 1st Armoured Division (Australia)
- 1st Armoured Division (Poland)
- 1st Armoured Division (United Kingdom)
- 1st Armoured Reconnaissance Brigade (United Kingdom)
- 1st Baltic Front
- 1st Belgrade Special Combat detachment
- 1st Belorussian Front
- 1st Canadian Armoured Brigade
- 1st Canadian Division
- 1st Canadian Infantry Division
- 1st Canadian Tank Brigade
- 1st Cavalry Army (Soviet Union)
- 1st Cavalry Division (United States)
- 1st Colonial Infantry Division (France)
- 1st Cossack Division
- 1st Czechoslovak Armoured Brigade
- 1st Division (Australia)
- 1st Division (Imperial Japanese Army)
- 1st Far East Front
- 1st Free French Division
- 1st Grenadiers Division (Poland)
- 1st Guards Army (Soviet Union)
- 1st Guards Division (Japan)
- 1st Guards Special Rifle Corps
- 1st Guards Tank Army (Soviet Union)
- 1st Infantry Division (Germany)
- 1st Infantry Division (Slovak Republic)
- 1st Infantry Division (South Africa)
- 1st Infantry Division (United Kingdom)
- 1st Infantry Division (United States)
- 1st Legions Infantry Division (Poland)
- 1st Light Cavalry Division (France)
- 1st Light Division (Germany)
- 1st Light Mechanized Division (France)
- 1st Marine Division (United States)
- 1st Marine Infantry Parachute Regiment
- 1st Moroccan Infantry Division
- 1st Motor Machine Gun Brigade
- 1st Mountain Division (Germany)
- 1st Naval Infantry Division (Germany)
- 1st Operations Group
- 1st Panzer Army (Germany)
- 1st Panzer Division (Germany)
- 1st Parachute Army (Germany)
- 1st Parachute Battalion (Australia)
- 1st Parachute Division (Germany)
- 1st Photo Squadron (Detachment C)
- 1st Red Banner Army
- 1st Rifle Division (Soviet Union)
- 1st Shock Army
- 1st Ski Division (Germany)
- 1st Special Service Brigade (United kingdom)
- 1st SS Division Leibstandarte SS Adolf Hitler
- 1st Tank Division (Imperial Japanese Army)
- 1st Ukrainian Front
- 1st unofficial Chess Olympiad
- 2-inch mortar
- 2 Alpine Division Tridentina
- 2 Alpine Engineer Regiment
- 2 cm FlaK 30
- 2 cm KwK 30
- 2 Days in Paris
- 2 Mountain Artillery Regiment (Italy)
- 2 or 3 Things I Know About Him
- 2. Jagd-Division
- 2.8 cm sPzB 41
- 2/11th Australian Infantry Battalion
- 2/12th Field Ambulance (Australia)
- 2/18th Australian Infantry Battalion
- 2/1st Australian Infantry Battalion
- 2/25th Australian Infantry Battalion
- 2/2nd Australian Infantry Battalion
- 2/3rd Australian Infantry Battalion
- 2/4th Australian Infantry Battalion
- 2/5th Australian Infantry Battalion
- 2/6th Australian Infantry Battalion
- 2/6th Cavalry Commando Regiment (Australia)
- 2/7th Australian Infantry Battalion
- 2/8th Australian Infantry Battalion
- 20 mm AA Machine Cannon Carrier Truck
- 20 mm Anti-Aircraft Tank "Ta-Se"
- 2000 UEFA Champions League Final
- 2001 European Judo Championships
- 2005 civil unrest in France
- 2006 People's Liberation Army Air Force KJ-200 crash
- 2006 UEFA Champions League Final
- 2007 Dakar Rally
- 2008 Dakar Rally
- 2008
- 200th Battalion, CEF
- 200th Division (National Revolutionary Army)
- 201st (Toronto Light Infantry) Battalion, CEF
- 201st Division (Imperial Japanese Army)
- 202nd (Sportsmens) Battalion, CEF
- 202nd Division (Imperial Japanese Army)
- 203 mm howitzer M1931 (B-4)
- 203mm/50 Modèle 1924 gun
- 203mm/55 Modèle 1931 gun
- 203rd (Winnipeg Rifles) Battalion, CEF
- 204th (Toronto Beavers) Battalion, CEF
- 205th (Tiger) Battalion, CEF
- 205th Infantry Division (Germany)
- 206th (Canadien-Français) Battalion, CEF
- 206th Infantry Division (Germany)
- 207th (Carleton) Battalion, CEF
- 207th Infantry Division (Germany)
- 208th (Canadian Irish) Battalion, CEF
- 208th Infantry Division (Germany)
- 208th Rifle Division
- 209th Battalion, CEF
- 20th Armored Division (United States)
- 20th Army (People's Republic of China)
- 20th Battalion, CEF
- 20th Division (Imperial Japanese Army)
- 20th Infantry Division (Germany)
- 20th Infantry Division (India)
- 20th Infantry Division (Poland)
- 20th Mountain Army (Germany)
- 20th Panzer Division (Germany)
- 20th Waffen Grenadier Division of the SS (1st Estonian)
- 21 cm Mörser 18
- 210 mm gun M1939 (Br-17)
- 210th (Frontiersmen) Battalion, CEF
- 210th Coastal Defense Division (Germany)
- 210th Independent Infantry Brigade (Home)
- 211th Battalion, CEF
- 212th Battalion, CEF
- 212th Infantry Division (Germany)
- 213th Battalion, CEF
- 214th (Saskatchewan) Battalion, CEF
- 214th Infantry Brigade (United Kingdom)
- 215th Battalion, CEF
- 216th (Bantams) Battalion, CEF
- 216th Infantry Division (Germany)
- 217th Battalion, CEF
- 218th Battalion, CEF
- 218th Infantry Division (Germany)
- 219th (Highland) Battalion, CEF
- 21st Army (Germany)
- 21st Army Group
- 21st Infantry Division (France)
- 21st Infantry Division (Germany)
- 21st Mountain Infantry Division (Poland)
- 21st Norwegian Army (Germany)
- 21st Panzer Division (Germany)
- 21st Waffen Mountain Division of the SS Skanderbeg (1st Albanian)
- 220th (12th York Rangers) Battalion, CEF
- 221st Battalion, CEF
- 222nd Battalion, CEF
- 223rd (Scandinavians) Battalion, CEF
- 223rd Independent Infantry Brigade (Home)
- 224th Battalion, CEF
- 225th (Kootenay) Battalion, CEF
- 226th Battalion, CEF
- 227th Battalion, CEF
- 228th (Northern Fusiliers) Battalion, CEF
- 229th Battalion, CEF
- 22nd Air Landing Infantry Division (Germany)
- 22nd Army (Soviet Union)
- 22nd Division (Imperial Japanese Army)
- 22nd Infantry Division (France)
- 22nd Mountain Infantry Division (Poland)
- 22nd Panzer Division (Germany)
- 22nd SS Volunteer Cavalry Division Maria Theresia
- 230th (Voltigeurs Canadiens-Français) Battalion, CEF
- 230th Coastal Defense Division (Germany)
- 231st Battalion, CEF
- 232nd (Saskatchewan) Battalion, CEF
- 233rd (Canadiens Français du Nord Ouest) Battalion, CEF
- 234th (Peel) Battalion, CEF
- 235th Battalion, CEF
- 236th (The New Brunswick Kilties) Battalion, CEF
- 237th Battalion, CEF
- 238th Battalion, CEF
- 239th Battalion, CEF
- 23rd (Northumbrian) Division
- 23rd Army (Soviet Union)
- 23rd Division (Imperial Japanese Army)
- 23rd Infantry Division (Germany)
- 23rd Infantry Division (India)
- 23rd Infantry Division (Poland)
- 23rd Panzer Division (Germany)
- 23rd Waffen Mountain Division of the SS Kama
- 240 mm howitzer M1
- 240mm/50 Modèle 1902 gun
- 240th Battalion, CEF
- 241st (Canadian Scottish Borderers) Battalion, CEF
- 242nd Battalion, CEF
- 243rd Battalion, CEF
- 243rd Static Infantry Division (Germany)
- 244th (Kitchener's Own) Battalion, CEF
- 245th (Canadian Grenadier Guards) Battalion, CEF
- 246th (Nova Scotia Highlanders) Battalion, CEF
- 246th Volksgrenadier Division (Germany)
- 247th Battalion, CEF
- 248th Battalion, CEF
- 249th Battalion, CEF
- 24th Division (Imperial Japanese Army)
- 24th Infantry Division (United States)
- 24th Mixed Brigade (Imperial Japanese Army)
- 24th Panzer Division (Germany)
- 24th Rifle Division (Soviet Union)
- 25 Cent WWII (Dutch coin)
- 25 mm automatic air defense gun M1940 (72-K)
- 25 mm Hotchkiss anti-aircraft gun
- 25 mm Hotchkiss anti-tank gun
- 25. Unterseebootsflottille
- 250th Battalion, CEF
- 251st (Good Fellows) Battalion, CEF
- 252nd (Lindsay) Battalion, CEF
- 253rd (University Highland) Battalion, CEF
- 254th (Quinte's Own) Battalion, CEF
- 255th (Queen's Own Rifles of Canada) Battalion, CEF
- 256th Battalion, CEF
- 257th Battalion, CEF
- 258th Battalion, CEF
- 25th Division (Imperial Japanese Army)
- 25th Infantry Brigade (United Kingdom)
- 25th Infantry Division (India)
- 25th Infantry Division (United States)
- 25th Motorized Division (France)
- 25th Panzer Division (Germany)
- 25th Rifle Division (Soviet Union)
- 25th SS Grenadier Division Hunyadi (1st Hungarian)
- 25th Waffen Grenadier Division of the SS Hunyadi (1st Hungarian)
- 25th/49th Battalion, Royal Queensland Regiment
- 26th Armoured Brigade (United Kingdom)
- 26th Army (People's Republic of China)
- 26th Division (Imperial Japanese Army)
- 26th Infantry Brigade (United Kingdom)
- 26th Infantry Division (Germany)
- 26th Infantry Division (United States)
- 26th Waffen Grenadier Division of the SS (2nd Hungarian)
- 270th Rifle Division
- 273rd Reserve Panzer Division
- 275th Infantry Division (Germany)
- 277th Infantry Division (Germany)
- 27th Armoured Brigade
- 27th Army (People's Republic of China)
- 27th Division (Imperial Japanese Army)
- 27th Guards Rifle Division
- 27th Home Army Infantry Division (Poland)
- 27th Infantry Brigade (United Kingdom)
- 27th Infantry Division (Poland)
- 27th Infantry Division (Sila)
- 27th Infantry Division (United States)
- 27th Panzer Division (Germany)
- 27th Truck-Moveable Division (Brescia)
- 281st Infantry Division (Germany)
- 286th Security Division (Germany)
- 289th Military Police Company
- 28th Armoured Brigade (United Kingdom)
- 28th Division (Imperial Japanese Army)
- 28th Infantry Division (Poland)
- 28th Infantry Division (United States)
- 28th Jäger Division (Germany)
- 292nd Infantry Division (Germany)
- 299th Infantry Division (Germany)
- 29th Armoured Brigade (United Kingdom)
- 29th Army (Soviet Union)
- 29th Battalion, CEF
- 29th Flight Training Wing
- 29th Infantry Division (Germany)
- 29th Infantry Division (United States)
- 29th Waffen Grenadier Division of the SS (1st Italian)
- 2nd (African) Division
- 2nd Armored Division (France)
- 2nd Armored Division (United States)
- 2nd Armoured Division (Australia)
- 2nd Armoured Division (United Kingdom)
- 2nd Armoured Regiment (Poland)
- 2nd Belorussian Front
- 2nd Canadian Armoured Brigade
- 2nd Canadian Division
- 2nd Canadian Infantry Division
- 2nd Cavalry Division (United States)
- 2nd Division (Australia)
- 2nd Division (Imperial Japanese Army)
- 2nd Division (Norway)
- 2nd Far Eastern Front
- 2nd Guards Army (Soviet Union)
- 2nd Guards Division (Japan)
- 2nd Guards Mixed Brigade (Japan)
- 2nd Guards Tank Army (Soviet Union)
- 2nd Infantry Division (Germany)
- 2nd Infantry Division (India)
- 2nd Infantry Division (South Africa)
- 2nd Infantry Division (United Kingdom)
- 2nd Infantry Division (United States)
- 2nd Infantry Regiment (United States)
- 2nd Light Cavalry Division (France)
- 2nd Light Division (Germany)
- 2nd Light Mechanized Division (France)
- 2nd London Infantry Division
- 2nd Marine Division (United States)
- 2nd Marine Regiment (United States)
- 2nd Mountain Division (Germany)
- 2nd Naval Infantry Division (Germany)
- 2nd North African Infantry Division
- 2nd Panzer Army (Germany)
- 2nd Panzer Division (Germany)
- 2nd Panzer Group (Germany)
- 2nd Parachute Division (Germany)
- 2nd Red Banner Army
- 2nd Rifle Division (Soviet Union)
- 2nd Shock Army
- 2nd SS Division Das Reich
- 2nd Tank Division (Imperial Japanese Army)
- 3 Alpine Division Julia
- 3 Alpini Regiment
- 3 inch Gun M5
- 3 Mountain Artillery Regiment (Italy)
- 3"/50 caliber gun
- 3.7 cm FlaK 43
- 3.7 cm KwK 36
- 3.7 cm PaK 36
- 3.7 inch Mountain Howitzer
- 301 Military Hospital
- 301st Air Refueling Wing
- 302nd Static Infantry Division (Germany)
- 305 mm howitzer M1939 (Br-18)
- 305mm/45 Modèle 1906 gun
- 305th Infantry Division (Germany)
- 308th Armament Systems Wing
- 30th Armoured Brigade
- 30th Army (People's Republic of China)
- 30th Infantry Division (United States)
- 30th Mechanized Brigade (Ukraine)
- 30th Waffen Grenadier Division of the SS (1st Belarussian)
- 30th Waffen Grenadier Division of the SS (2nd Russian)
- 318th Fighter Group
- 31st Battalion, CEF
- 31st Division (Imperial Japanese Army)
- 31st Guards Rifle Division
- 31st Infantry Division (United States)
- 32 Alpine Engineer Regiment
- 322nd Rifle Division (Soviet Union)
- 323d Flying Training Wing
- 324th Fighter Group
- 324th Rifle Division
- 326th Infantry Division (Germany)
- 32nd Infantry Division (France)
- 32nd Infantry Division (Germany)
- 32nd Infantry Division (United States)
- 32nd Rifle Division (Soviet Union)
- 33/5
- 330mm/50 Modèle 1931 gun
- 331st Bombardment Group
- 332d Fighter Group
- 332nd Static Infantry Division (Germany)
- 333d Bombardment Group
- 334th Infantry Division (Germany)
- 336th Training Group
- 33rd Army (Soviet Union)
- 33rd Division (Imperial Japanese Army)
- 33rd Infantry Division (Germany)
- 33rd Infantry Division (United States)
- 33rd Mixed Brigade (Imperial Japanese Army)
- 33rd Waffen Grenadier Division of the SS Charlemagne (1st French)
- 340mm/45 Modèle 1912 gun
- 340th Bombardment Group
- 345th Bomb Group
- 346th Bombardment Group
- 347th Regiment (People's Republic of China)
- 349th Infantry Division (Germany)
- 349th Squadron (Belgium)
- 34th Brigade (Australia)
- 34th Division (Imperial Japanese Army)
- 34th Infantry Division (United States)
- 350th Squadron (Belgium)
- 351st Bomb Group
- 352d Fighter Group
- 352nd Infantry Division (Germany)
- 357th Fighter Group
- 359th Fighter Group
- 35th Army (Soviet Union)
- 35th Infantry Division (United States)
- 35th SS and Police Grenadier Division
- 36 Hours
- 361st Fighter Group
- 365th Fighter Group
- 369th Reinforced Infantry Regiment
- 36th Battalion (Australia)
- 36th Infantry Division (United Kingdom)
- 36th Infantry Division (United States)
- 36th Infantry Regiment (Poland)
- 37 mm anti-tank gun M1930 (1-K)
- 37 mm automatic air defense gun M1939 (61-K)
- 37 mm Gun M3
- 37mm Gun M1
- 37th Division (Imperial Japanese Army)
- 37th Infantry Division (United States)
- 37th SS Volunteer Cavalry Division Lützow
- 38 cm SKC 34 naval gun
- 380mm/45 Modèle 1935 gun
- 380th Bomb Group
- 381st Training Group
- 382d Bombardment Group
- 383d Bombardment Group
- 383rd Rifle Division (Soviet Union)
- 385th Infantry Division (Germany)
- 38th (Irish) Infantry Brigade (United Kingdom)
- 38th (Welsh) Division
- 38th Army (People's Republic of China)
- 38th Battalion, CEF
- 38th Infantry Division (United States)
- 391st Bombardment Group
- 392nd Strategic Missile Wing
- 393d Bombardment Group
- 394th Bombardment Group
- 396th Bombardment Group
- 397th Bombardment Wing
- 399th Bombardment Group
- 39M Csaba
- 39th Army (People's Republic of China)
- 39th Battalion (Australia)
- 39th Division (Imperial Japanese Army)
- 39th Infantry Division (India)
- 39th Rifle Division (Soviet Union)
- 3d Armored Cavalry Regiment (United States)
- 3d Combat Cargo Group
- 3d United States Infantry Regiment (The Old Guard)
- 3M-54 Klub
- 3rd Algerian Infantry Division
- 3rd Armored Division (France)
- 3rd Armored Division (United States)
- 3rd Armoured Division (Australia)
- 3rd Army (Soviet Union)
- 3rd Battalion 3rd Marines
- 3rd Belorussian Front
- 3rd Brigade, 1st Cavalry Division (United States)
- 3rd Canadian Division
- 3rd Canadian Infantry Division
- 3rd Division (Australia)
- 3rd Division (Imperial Japanese Army)
- 3rd Division (New Zealand)
- 3rd Guards Army (Soviet Union)
- 3rd Guards Division (Japan)
- 3rd Guards Tank Army (Soviet Union)
- 3rd Infantry Division (Germany)
- 3rd Infantry Division (South Africa)
- 3rd Infantry Division (United Kingdom)
- 3rd Infantry Division (United States)
- 3rd Light Division (Germany)
- 3rd Light Mechanized Division (France)
- 3rd Marine Division (United States)
- 3rd Motor Rifle Division
- 3rd Mountain Division (Germany)
- 3rd North African Infantry Division
- 3rd Panzer Army (Germany)
- 3rd Panzer Division (Germany)
- 3rd Panzer Group (Germany)
- 3rd Polish Infantry Brigade
- 3rd Shock Army (Soviet Union)
- 3rd SS Division Totenkopf
- 3rd Tank Division (Imperial Japanese Army)
- 3rd/4th County of London Yeomanry (Sharpshooters)
- 4 Alpine Division Cuneense
- 4 Alpini Regiment
- 4 Mountain Artillery Regiment (Italy)
- 4"/50 caliber gun
- 4.2 cm PaK 41
- 4.5 inch Gun M1
- 40 cm/45 Type 94
- 40 M Turan I
- 400th Bombardment Group
- 405th Fighter Group
- 409th Bombardment Group
- 40th Air Expeditionary Wing
- 40th Army (People's Republic of China)
- 40th Army (Soviet Union)
- 40th Division (Imperial Japanese Army)
- 40th Infantry Division (United Kingdom)
- 40th Infantry Division (United States)
- 413th Fighter Group
- 414th Fighter Group
- 41st Infantry Division (France)
- 41st Infantry Division (United States)
- 42nd (East Lancashire) Division
- 42nd Armoured Division (United Kingdom)
- 42nd Army (People's Republic of China)
- 42nd Infantry Division (United States)
- 43rd (Wessex) Infantry Division
- 43rd Infantry Division (United States)
- 441st Troop Carrier Group
- 443d Troop Carrier Group
- 444th Bombardment Group
- 449th Bombardment Wing
- 44th (Home Counties) Infantry Division
- 44th Airborne Division (India)
- 44th Infantry Division (Germany)
- 44th Infantry Division (United States)
- 45 mm anti-tank gun M1937 (53-K)
- 45 mm anti-tank gun M1942 (M-42)
- 453rd Bombardment Group
- 454th Bombardment Wing
- 456th Bomb Group
- 458th Bombardment Group
- 45th Infantry Division (United Kingdom)
- 45th Infantry Division (United States)
- 45th Rifle Division (Soviet Union)
- 460th Parachute Field Artillery Battalion (United States)
- 461st Bombardment Wing
- 462d Bombardment Group
- 463d Airlift Group
- 464th Tactical Airlift Wing
- 465th Bombardment Wing
- 466th Bombardment Group
- 467th Bombardment Group
- 468th Bombardment Group
- 46th (North Midland) Division
- 46th Battalion, CEF
- 46th Infantry Division (Germany)
- 47 mm APX anti-tank gun
- 470th Bombardment Group
- 477th Fighter Group
- 483d Composite Wing
- 489th Bombardment Group
- 48th (South Midland) Division
- 48th Armored Medical Battalion
- 490th Bombardment Group
- 491st Bombardment Group
- 493d Bombardment Group
- 494th Bombardment Group
- 49th (West Riding) Infantry Division
- 49th Hutsul Rifle Regiment
- 49th Parallel
- 4th Armored Division (United States)
- 4th Army (Soviet Union)
- 4th arrondissement of Paris
- 4th Brigade, 1st Cavalry Division (United States)
- 4th Canadian (Armoured) Division
- 4th Canadian Armoured Brigade
- 4th Canadian Division
- 4th Canadian Infantry Brigade
- 4th Cavalry Regiment (United States)
- 4th Combat Cargo Group
- 4th Division (Imperial Japanese Army)
- 4th Fighter Group
- 4th Guards Army (Soviet Union)
- 4th Infantry Division (Germany)
- 4th Infantry Division (India)
- 4th Infantry Division (Poland)
- 4th Infantry Division (United Kingdom)
- 4th Infantry Division (United States)
- 4th Infantry Regiment (United States)
- 4th Light Cavalry Division (France)
- 4th Luftwaffe Field Division (Germany)
- 4th Marine Division (United States)
- 4th Mixed Brigade (Imperial Japanese Army)
- 4th Mountain Division (Germany)
- 4th North African Infantry Division
- 4th Panzer Army (Germany)
- 4th Panzer Division (Germany)
- 4th Rifle Division (Soviet Union)
- 4th SS Polizei Division
- 4th SS Volunteer Panzergrenadier Brigade Netherlands
- 4th Tank Army (Soviet Union)
- 4th Tank Division (Imperial Japanese Army)
- 4th Territorial Army Corps (Romania)
- 4th Ukrainian Front
- 5 Alpine Division Pusteria
- 5 Alpini Regiment
- 5 cm KwK 38
- 5 cm KwK 39
- 5 cm PaK 38
- 5 Mountain Artillery Regiment (Italy)
- 5"/25 caliber gun
- 5"/38 caliber gun
- 5"/51 caliber gun
- 500th SS Parachute Battalion
- 501st Parachute Infantry Regiment (United States)
- 502d Bombardment Group
- 502nd Heavy Tank Battalion (Germany)
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