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508th Fighter Squadron508th Heavy Panzer Battalion508th Infantry Regiment (United States)
508th Missile Squadron509th Bomb Wing509th Composite Group
509th Heavy Panzer Battalion509th Infantry Regiment (United States)509th Missile Squadron
509th Operations Group509th Security Forces Squadron509th Tactical Fighter Squadron
509th Weapons Squadron50 Let Pobedy50 Missile Regiment Royal Artillery
50 Squadron50 Squadron SAAF50th (Northumbrian) Division
50th (Northumbrian) Infantry Division50th (Northumbrian) Signal Regiment50th (Queen's Own) Regiment of Foot
50th Air Division50th Air Refueling Squadron50th Air Transport Squadron
50th Airlift Squadron50th Alabama Infantry Regiment50th Anti-Aircraft Missile Regiment (Romania)
50th Armored Division (United States)50th Armoured Regiment (India)50th Army
50th Army (People's Republic of China)50th Army (Soviet Union)50th Army Corps (Russian Empire)
50th Attack Squadron50th Battalion, CEF50th Battalion (Australia)
50th Battalion (Calgary), CEF50th Brigade50th Brigade (United Kingdom)
50th Coast Artillery (United States)50th Division50th Division (1st Formation)(People's Republic of China)
50th Division (Imperial Japanese Army)50th Education Squadron50th Expeditionary Signal Battalion
50th Field Artillery Regiment (The Prince of Wales Rangers), RCA50th Fighter-Bomber Squadron50th Flying Training Squadron
50th Georgia Volunteer Infantry50th Illinois Infantry Regiment50th Illinois Volunteer Infantry Regiment
50th Independence Anniversary Commemoration Medal50th Indian Brigade50th Indian Tank Brigade
50th Indiana Infantry Regiment50th Infantry Brigade Combat Team (United States)50th Infantry Division (German Empire)
50th Infantry Division (Russian Empire)50th Infantry Division (Wehrmacht)50th Infantry Division Regina
50th Infantry Regiment (United States)50th Light Anti-Aircraft Brigade (United Kingdom)50th Mechanized Infantry Brigade (Greece)
50th Military Airlift Squadron50th Network Operations Group50th North Carolina Infantry
50th Ohio Infantry50th Operations Group50th Parachute Brigade (India)
50th Pennsylvania Infantry50th Pennsylvania Infantry Regiment50th Regiment
50th Regiment Royal Artillery50th Regiment of Foot (disambiguation)50th Reserve Division (German Empire)
50th Rifle Corps50th Rifle Division (Soviet Union)50th Rocket Army
50th Royal Tank Regiment50th Space Communications Squadron50th Space Wing
50th United States Colored Infantry Regiment50th Virginia Infantry50th Wing
50th Wisconsin Volunteer Infantry Regiment510th510th Fighter Squadron
510th Heavy Panzer Battalion510th Missile Squadron511th
511th Bombardment Squadron511th Naval Squadron (Reserve)511th Parachute Infantry Regiment (United States)
511th Tactical Fighter Squadron512 Squadron512th
512th Airlift Wing512th Fighter Squadron512th Heavy Panzerjäger Battalion
512th Operations Group512th Rescue Squadron513th
513th Air Control Group513th Electronic Warfare Squadron513th Fighter-Interceptor Squadron
513th Military Intelligence Brigade513th Parachute Infantry Regiment (United States)514th
514th Air Defense Group514th Air Mobility Wing514th Fighter-Interceptor Squadron
514th Flight Test Squadron514th Operations Group515 Army Base Workshop
515th515th Air Defense Group515th Air Mobility Operations Wing
515th Bombardment Squadron515th Parachute Infantry Regiment (United States)515th Strategic Fighter Squadron
516th516th Aeronautical Systems Group516th Aeronautical Systems Wing
516th Air Defense Group516th Signal Brigade516th Strategic Fighter Squadron
517 Squadron517th517th Air Defense Group
517th Airlift Squadron517th Parachute Infantry Regiment517th Parachute Infantry Regiment (United States)
517th Parachute Regimental Combat Team517th Strategic Fighter Squadron518th
518th Air Defense Group518th Fighter-Interceptor Squadron518th Infantry Regiment (United States)
518th Sustainment Brigade (United States)519th519th Air Defense Group
519th Fighter-Interceptor Squadron519th Military Intelligence Battalion (United States)51 (Highland) Signal Squadron
51 Aerospace Control and Warning Operational Training Squadron51 Division (Sri Lanka)51 Squadron
51st (2nd Yorkshire West Riding) Regiment of Foot51st (Highland) Division51st (Highland) Division Monument (Beaumont-Hamel)
51st (Highland) Searchlight Regiment, Royal Artillery51st (Leeds Rifles) Royal Tank Regiment51st (London) Heavy Anti-Aircraft Regiment, Royal Artillery
51st Armoured Regiment (India)51st Army51st Army (Russia)
51st Battalion, Far North Queensland Regiment51st Battalion (Edmonton), CEF51st Bombardment Squadron
51st Bombardment Squadron (Light)51st Brigade51st Coast Artillery Regiment
51st Coast Artillery Regiment (United States)51st Combat Communications Squadron51st Corps (German Empire)
51st Division51st Division (1st Formation)(People's Republic of China)
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