"Bill" Caldwell IV (born January 24, 1954)[4] is a retired United States Army officer and the current President of Georgia Military College.

[8] Following a battalion command position in the 25th Infantry Division in Hawaii in the mid-1990s, Caldwell was sent to Haiti to work as political-military liaison in the U.S. Embassy during Operation Uphold Democracy.

[9] Following his command of the 82nd, Caldwell was assigned as Deputy Chief of Staff for Strategic Effects and spokesperson for the Multi-National Force – Iraq, a position he held for 13 months.

Caldwell assumed command of the NATO Training Mission-Afghanistan (NTM-A)/Combined Security Transition Command-Afghanistan (CSTC-A) on November 21, 2009.

Prior to the activation of NTM-A at that time, CSTC-A was a two-star command headed by then Major General Richard Formica.

"[10] Caldwell's efforts in Afghanistan received praise from figures in the military and government, including Senator Carl Levin, United States Secretary of Defense Robert Gates, and Admiral Mike Mullen.