Category:Military units and formations established in 1921
Pages in category "Military units and formations established in 1921"
The following 200 pages are in this category, out of approximately 352 total. This list may not reflect recent changes.
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- 1st Cavalry Division (United States)
- No. 1 Flying Training School RAAF
- No. 1 Squadron RAF Regiment
- No. 1 Aircraft Depot RAAF
- No. 1 Armoured Car Company RAF
- 1st Battalion, 161st Field Artillery Regiment (United States)
- 1st Battalion, 258th Field Artillery (United States)
- 1st Brigade, 24th Infantry Division (United States)
- 1st Brigade, 104th Division (United States)
- 1st Cavalry Brigade (Australia)
- 1st Division (Australia)
- 1st Field Regiment, Royal New Zealand Artillery
- 1st Motor Brigade (Australia)
- 1st Provisional Air Brigade
- 1st Recruit Training Battalion (United States)
- 2nd Cavalry Division (United States)
- 2nd Armoured Division (Australia)
- 2nd Brigade, 24th Infantry Division (United States)
- 2nd Brigade, 104th Division (United States)
- 2nd Cavalry Brigade (Australia)
- 2nd Division (Australia)
- 2nd Field Regiment, Royal New Zealand Artillery
- 2nd Motor Brigade (Australia)
- 3rd Armoured Division (Australia)
- 3rd Battalion (Australia)
- 3rd Brigade, 104th Division (United States)
- 3rd Cavalry Brigade (Australia)
- 3rd Division (Australia)
- 3rd Field Regiment, Royal New Zealand Artillery
- 3rd Manchester Rifles
- 3rd Motor Brigade (Australia)
- 3rd Rifle Division (Soviet Union)
- 4th Battalion (Australia)
- 4th Brigade, 104th Division (United States)
- 4th Cavalry Brigade (Australia)
- 4th Division (Australia)
- 4th Motor Brigade (Australia)
- 4th Rifle Division (Soviet Union)
- 4th/5th (Queen's Edinburgh Rifles) Battalion, Royal Scots
- V Corps Artillery (United States)
- 5th Motor Brigade (Australia)
- 5th/8th Battalion, Cameronians (Scottish Rifles)
- 6th/7th Battalion, Manchester Regiment
- 7th Battalion (Australia)
- 7th Light Horse Regiment (Australia)
- 8th Battalion (Australia)
- 8th Light Horse Regiment (Australia)
- 9th Battalion, Royal Queensland Regiment
- 10th Terek-Dagestan Army
- 11th Light Horse Regiment (Australia)
- 14th Battalion (Australia)
- 15th Battalion (Australia)
- 16th Battalion, Royal Western Australia Regiment
- 18th Cavalry (India)
- 18th Light Horse Regiment
- 18th Squadron (Observation)
- 21st Cavalry Division (United States)
- 22nd Battalion (Australia)
- 23rd Bomb Squadron
- 23rd Infantry Division (Poland)
- 23rd Field Artillery Regiment (United States)
- 24th Infantry Division (United States)
- 24th Battalion (Australia)
- 24th Fighter Squadron
- 24th Infantry Division (Poland)
- 25th Battalion (Australia)
- 25th Squadron (Bombardment)
- 26th Attack Squadron
- 26th Battalion (Australia)
- 27th Battalion (Australia)
- 28th Battalion (Australia)
- 28th Infantry Division (Poland)
- 29th Battalion (Australia)
- 30th Battalion (Australia)
- 30th Infantry Division (Poland)
- 32nd Battalion (Australia)
- 36th Battalion (Australia)
- 37th Battalion (Australia)
- 38th Battalion (Australia)
- 39th Battalion (Australia)
- 46th Battalion (Australia)
- 47th Battalion (Australia)
- 49th Battalion (Australia)
- 51st (Cornwall and Warwickshire) Medium Brigade, Royal Garrison Artillery
- 51st (Lancashire and Cumberland) Brigade, Royal Field Artillery
- 51st Battalion, Far North Queensland Regiment
- 52nd (Kent) Medium Brigade, Royal Garrison Artillery
- 52nd (Manchester) Brigade, Royal Field Artillery
- 53rd (Bolton) Brigade, Royal Field Artillery
- 53rd (London) Medium Brigade, Royal Garrison Artillery
- 53rd Battalion (Australia)
- 54th (West Riding & Staffordshire) Medium Brigade, Royal Garrison Artillery
- 54th Battalion (Australia)
- 55th (Northumbrian) Medium Brigade, Royal Garrison Artillery
- 55th (Wessex) Brigade, Royal Field Artillery
- 55th Battalion (Australia)
- 56th Air Defense Artillery Regiment
- 56th (Highland) Medium Brigade, Royal Garrison Artillery
- 56th (Wessex) Army Field Brigade, Royal Artillery
- 57th (Lowland) Medium Brigade, Royal Garrison Artillery
- 57th Rifle Division
- 58th (Porton) Company, Royal Engineers
- 59th (Home Counties) (Cinque Ports) Brigade, Royal Field Artillery
- 59th Battalion (Australia)
- 60th (6th Cheshire and Shropshire) Medium Brigade, Royal Garrison Artillery
- 60th (North Midland) Brigade, Royal Field Artillery
- 61st (North Midland) Field Regiment, Royal Artillery
- 61st Cavalry Division (United States)
- 62nd (North Midland) Brigade, Royal Field Artillery
- 62nd Cavalry Division (United States)
- 64th Cavalry Division (United States)
- 65th Cavalry Division (United States)
- 67th (South Midland) Brigade, Royal Field Artillery
- 68th (South Midland) Brigade, Royal Field Artillery
- 73rd (Northumbrian) Brigade, Royal Field Artillery
- 75th Field Artillery Brigade (United States)
- 76th (Highland) Brigade, Royal Field Artillery
- 77th (Highland) Brigade, Royal Field Artillery
- 78th (Lowland) Brigade, Royal Field Artillery
- 79th (Lowland) Brigade, Royal Field Artillery
- 80th (Lowland) Brigade, Royal Field Artillery
- 81st (Welsh) Brigade, Royal Field Artillery
- 82nd (Welsh) Brigade, Royal Field Artillery
- 84th (East Anglian) Brigade, Royal Field Artillery
- 86th (East Anglian) (Hertfordshire Yeomanry) Brigade, Royal Field Artillery
- 86th Infantry Brigade Combat Team
- 87th Infantry Brigade (United States)
- 89th (3rd West Lancashire) Brigade, Royal Field Artillery
- 92nd (5th London) Brigade, Royal Field Artillery
- 93rd (Westmorland and Cumberland Yeomanry) Brigade, Royal Field Artillery
- 94th (Somerset Yeomanry) Brigade, Royal Field Artillery
- 95th (Hampshire Yeomanry) Brigade, Royal Field Artillery
- 96th (Royal Devon Yeomanry) Brigade, Royal Field Artillery
- 101st Intelligence Squadron
- 102nd Infantry Division (United States)
- 103rd (Suffolk) Brigade, Royal Field Artillery
- 103rd Cavalry Regiment
- 103rd Engineer Battalion (United States)
- 103rd Infantry Division (United States)
- 104th (Essex Yeomanry) Brigade, Royal Field Artillery
- 104th Cavalry Regiment
- 104th Fighter Squadron
- 104th Infantry Division (United States)
- 105th Medium Battery, Royal Australian Artillery
- 106th (Lancashire Yeomanry) Brigade, Royal Field Artillery
- 106th Cavalry Regiment
- 108th Cavalry Regiment
- 109th Cavalry Regiment (United States)
- 110th Cavalry Regiment (United States, 1921–1940)
- 111th Fighter Escadrille
- 111th Cavalry Regiment
- 113th Cavalry Regiment
- 144th Infantry Regiment (United States)
- 159th Infantry Brigade (United Kingdom)
- 160th Field Artillery Regiment (United States)
- 186th Infantry Regiment (United States)
- 187th Infantry Brigade (United States)
- 188th Infantry Brigade (United States)
- 189th Field Artillery Regiment (United States)
- 189th Infantry Brigade (United States)
- 194th Armored Brigade (United States)
- 196th Infantry Brigade (United States)
- 197th Infantry Brigade (United States)
- 199th Infantry Brigade (United States)
- 201st (East Lancashire) Field Battery, Royal Artillery
- 202nd (East Lancashire) Field Battery, Royal Artillery
- 203rd (Cumberland) Field Battery, Royal Artillery
- 203rd Engineer Battalion (United States)
- 204th (Cumberland) Field Battery, Royal Artillery
- 205th (East Lancashire) Field Battery, Royal Artillery
- 205th Infantry Brigade (United States)
- 206th (East Lancashire) Field Battery, Royal Artillery
- 207th (East Lancashire) Field Battery, Royal Artillery
- 208th (East Lancashire) Field Battery, Royal Artillery
- 209th (East Lancashire) Field Battery, Royal Artillery
- 210th (East Lancashire) Field Battery, Royal Artillery
- 211th (East Lancashire) Field Battery, Royal Artillery
- 212th (East Lancashire) Field Battery, Royal Artillery
- 213th (Hampshire) Field Battery, Royal Artillery
- 214th (Hampshire) Field Battery, Royal Artillery
- 215th (Hampshire) Field Battery, Royal Artillery
- 216th (Hampshire) Field Battery, Royal Artillery
- 217th (Hampshire) Field Battery, Royal Artillery
- 218th (Hampshire) Field Battery, Royal Artillery
- 219th (Hampshire) Field Battery, Royal Artillery
- 220th (Wiltshire) Field Battery, Royal Artillery
- 221st (Devon) Field Battery, Royal Artillery
- 221st (Peterhead) Medium Battery, Royal Artillery
- 222nd (Devon) Field Battery, Royal Artillery
- 222nd (Fraserburgh) Medium Battery, Royal Artillery
- 223rd (Banffshire) Medium Battery, Royal Artillery
- 223rd (Devon) Field Battery, Royal Artillery
- 224th (Dorset) Field Battery, Royal Artillery
- 224th (Fife) Medium Battery, Royal Artillery
- 225th (City of Edinburgh) Medium Battery, Royal Artillery
- 225th (Sussex) Field Battery, Royal Artillery
- 226th (City of Edinburgh) Medium Battery, Royal Artillery
- 226th (Sussex) Field Battery, Royal Artillery
- 227th (Haddington) Medium Battery, Royal Artillery
- 227th (Sussex) Field Battery, Royal Artillery