 The brigade saw only a single activation into active duty service, at the start of the Iraq War.It was ordered into active military service on 10 February 2003 at Gaithersburg, Maryland as part of the U.S. Military's mobilization in preparation for Operation Iraqi Freedom.Some 13,800 reserve component Military Police were called into active duty for the invasion, including the Headquarters of the 220th as well as the 800th Military Police Brigade.