During the Cold War only the 156th Signal Battalion was federalized on 1 October 1961 at its home stations in response to the Cuban Missile Crisis. This marked the Michigan National Guard's last call to federal duty for service outside the state for almost 30 years. From February 2002, the 46th Engineer Group of the Michigan Army National Guard, had been reorganized and redesignated as the Enginee
r Brigade, 38th Infantry Division. Prior to the reorganization, the 46th Engineer Group consisted of a Group Headquarters and two battalions; the 107th Engineer Battalion and the 507th Engineer Battalion. Elements of the 107th Engineer Battalion and the 507th Engineer Battalions served with the 20th Engineer Brigade in Iraq from November 2004 to October 2005. These units also continued to serve in the US war in Afghanistan contributing combat engineer companies capable of Route Clearance patrols. In 2009 several soldiers of the 1431st Engineer Company were severely injured while in combat in east Afghanistan near the Khost-Gardez Pass. In 2012 a soldier of the 107th Engineer Battalion died in combat and several other were injured while conducting a route clearance patrol.[
