3rd Battalion

• 126th Aviation Regiment (United States)
• 3rd Battalion (Australia)
• 3rd Battalion 10th Marines
• 3rd Battalion 11th Marines
• 3rd Battalion 12th Marines
• 3rd Battalion 14th Marines
• 3rd Battalion 1st Marines
• 3rd Battalion 23rd Marines
• 3rd Battalion 24th Marines
• 3rd Battalion 25th Marines
• 3rd Battalion 28th Marines
• 3rd Battalion 2nd Marines
• 3rd Battalion 3rd Marines
• 3rd Battalion 4th Marines
• 3rd Battalion 5th Marines
• 3rd Battalion 6th Marines
• 3rd Battalion 7th Marines
• 3rd Battalion 8th Marines
• 3rd Battalion 9th Marines
• 3rd Battalion, 153rd Infantry Regiment
• 3rd Battalion, 158th Aviation Regiment
• 3rd Battalion, 16th Field Artillery
• 3rd Battalion, 187th Infantry Regiment
• 3rd Battalion, 29th Field Artillery
• 3rd Battalion, 319th Field Artillery Regiment
• 3rd Battalion, 69th Armor Regiment
• 3rd Battalion, 6th Field Artillery
• 3rd Battalion, CEF
• 3rd Battalion, Parachute Regiment
• 3rd Battalion, Royal Anglian Regiment
• 3rd Battalion, Royal Australian Regiment
• 3rd Battalion, The Royal Canadian Regiment
• 3rd Battalion, Ulster Defence Regiment