Acton was recalled to active duty for nearly three years subsequent to the 9/11 terrorist attacks to serve , initially , as a CG Liaison Officer at U.S. Joint Forces Command and then as the CG Liaison Officer for the stand-up of U.S. Northern Command . As the Fifth CG District Chief of Staff , he provided oversight for the largest reserve mobilization since World War II , in support of Operations Noble Eagle and Iraqi Freedom . He finished his active duty on Secretary Ridge 's operations integration staff at the Department of Homeland Security
9/11 terrorist attacks
September 11 attacks
John C. Acton