 Following the attacks of 11 September 2001, more than 100 members of 1st Battalion, 175th Infantry were individually mobilized to protect key airports in Maryland.This was followed by the battalion's mobilization in 2003 for Operation Noble Eagle, to protect Andrews Air Force Base and the Warfield Air National Guard Base, both in Maryland.Several officers and senior enlisted soldiers from the battalion have served as advisors for both the Afghan National Army and the Iraqi Army.