H. R. McMaster

Former National Security Advisor, Trump Administration; U.S. Army Lieutenant General

H. R. McMaster

Lieutenant General H. R. McMaster is the former national security advisor to President Trump, serving from February 2017 to April 2018. He was formerly director of the Army Capabilities and Integration Center and deputy commanding general, futures at the U.S. Army Training and Doctrine Command, assuming those roles in July, 2014.

Commissioned as an officer in the U.S. Army in 1984, McMaster was previously commanding general of the Maneuver Center of Excellence and Fort Benning from June 2012 to July 2014. Before that, he served as commander of the Combined Joint Inter-Agency Task Force Shafafiyat (Transparency) in Kabul, Afghanistan. McMaster's previous command assignments include Eagle Troop, Second Armored Cavalry Regiment in Bamberg, Germany and in Southwest Asia during the 1991 Persian Gulf War; 1st Squadron, 4th Cavalry in Schweinfurt, Germany from 1999 to 2002; and 3d Armored Cavalry Regiment at Fort Carson, Colorado and in Iraq from June 2004 to June 2006.

In addition, McMaster has served as director of concept development and learning at the U.S. Army Training and Doctrine Command from August 2008 to May 2010; special assistant to the commander, Multinational Force-Iraq from February 2007 to May 2008; director, commander's advisory group at U.S. Central Command from May 2003 to 2004; and squadron executive officer and regimental operations officer in the 11th Armored Cavalry Regiment from July 1997 to July 1999.

McMaster also served as an assistant professor of history at the United States Military Academy from 1994 to 1996 and a senior consulting fellow at the International Institute of Strategic Studies in London. He is the author of Dereliction of Duty: Lyndon Johnson, Robert McNamara, The Joint Chiefs of Staff, and the Lies that Led to Vietnam.

Last Updated: April 9, 2018