Military units and formations established in 1919

• 6th Operations Group

• I Brigade, Royal Horse Artillery
• 10th Infantry Division (Poland)
• 12th Army (RSFSR)
• 12th Podolian Uhlan Regiment
• 13th Army (RSFSR)
• 13th Army (Soviet Union)
• 14th Army (RSFSR)
• 15th Army (RSFSR)
• 16th Infantry Division (Poland)
• 16th Mechanised Division (Poland)
• 18th Infantry Division (Poland)
• 18th Mechanized Division (Poland)
• 18th Pomeranian Uhlan Regiment
• 19th Relief of Lwow Infantry Regiment
• 1st Bombardment Wing
• 1st Cavalry Division (Poland)
• 1st Cavalry Division (Polish)
• 1st Day Bombardment Group
• 1st Legions Infantry Division (Poland)
• 1st Photographic Section
• 1st Ukrainian Soviet Army
• 1st Wing (Provisional)

• II Brigade, Royal Horse Artillery
• 20th Rifle Division (Soviet Union)
• 21st Mountain Infantry Division (Poland)
• 21st Rifle Division
• 21st Rifle Division (Soviet Union)
• 22nd Mountain Infantry Division (Poland)
• 230th Brigade, Royal Field Artillery
• 266th Brigade, Royal Field Artillery
• 26th Infantry Division (Poland)
• 26th Rifle Division
• 26th Rifle Division (Soviet Union)
• 295th Brigade, Royal Field Artillery
• 2d Bombardment Wing (World War II)
• 2d Combat Bombardment Wing
• 2d Group (Observation)
• 2nd Legions Infantry Division (Poland)
• 
  2nd Life Guard Rifle Regiment
• 2nd Lithuanian–Belarusian Division
• 2nd Regiment, Royal Horse Artillery
• 2nd Rifle Division (Soviet Union)
• 2nd Ukrainian Soviet Army

• 32nd Infantry Regiment (Greece)
• 33rd Kuban Rifle Division
• 3d Aero Squadron
• 3d Observation Group
• 3rd Legions Infantry Division (Poland)
• 3rd Ukrainian Soviet Army

• 44th Rifle Division (Soviet Union)
• 45th Rifle Division (Soviet Union)
• 49th Hutsul Rifle Regiment
• 49th Rifle Division (RSFSR)
• 4th Aero Squadron
• 4th Composite Group
• 4th Infantry Division (Poland)
• 4th Life Guard Rifle Regiment

• 50th Infantry Regiment (Greece)
• 51st Rifle Division (Soviet Union)
• 55th/53rd Battalion (Australia)
• 57th Rifle Division (RSFSR)
• 5th Infantry Division (Poland)
• 5th Operations Group

• VI Brigade, Royal Horse Artillery
• 60th Rifle Division (RSFSR)
• 6th Infantry Division (Poland)
• 6th Regiment, Royal Horse Artillery

• 74th Bombardment Squadron

• VIII Brigade, Royal Horse Artillery

• IX Brigade, Royal Horse Artillery
• 92nd Brigade (United Kingdom)
• 9th Infantry Division (Poland)

• Argentine Naval Aviation
• Army Surveillance Group
• Artillery Battalion, 2nd Infantry Brigade (Estonia)

• Battlecruiser Squadron

• Canadian Machine Gun Corps
• Corps of Military Accountants
• Crimean Soviet Army

• Destroyer Squadron 2

• Freikorps Oberland

• Guard Battalion (Estonia)

• Hungarian National Defence Association

• Local Defence Division (Royal Navy)
• Logistics Battalion (Estonia)

• Maritime Dragoon Regiment

• No. 1 Flying Training School
• No. 1 Flying Training School RAF
• Norrland Artillery Battalion

• Polish 7th Air Escadrille

• RAF Bracebridge Heath
• RAF Coastal Area
• Red Army of Turin
• Royal Canadian Army Service Corps
• Royal Canadian Ordnance Corps
• Royal Yugoslav Army

• Siamese Expeditionary Forces
• Smyrna Division
• Southeastern Front (RSFSR)
• Staff Battalion (Latvia)

• Taiwan Army of Japan
• Turkestan Army (RSFSR)
• Turkestan Front

• Western Front (RSFSR)