sentences:  Gainey served as the command sergeant major for the 2nd Battalion, 68th Armored Regiment, and 1st Battalion, 35th Armored Regiment, 2nd Brigade Combat Team, 1st Armored Division, Baumholder, Germany; Eagle Base, Bosnia and Herzegovina; 1st Squadron, 2nd Armored Cavalry Regiment, Fort Polk; 2nd Brigade, 3rd Infantry Division, Fort Stewart; 2nd Armored Cavalry Regiment, Fort Polk; The United States Army Armor Center, Fort Knox; and as the command sergeant major for the III Corps and Fort Hood at Fort Hood, Texas.Gainey served in Operation Joint Endeavor (IFOR), Operation Joint Guard (SFOR 3) and Operation Joint Forge (SFOR 8) in Bosnia and Herzegovina.He served as the command sergeant major for the Combined Joint Task Force 7 (CJTF-7) and as the command sergeant major of the Multi-National Corps Iraq (MNC-I) in Operation Iraqi Freedom II.