H.R. McMaster

Herbert Raymond McMaster (born July 24, 1962) is a retired United States Army lieutenant general who served as the 25th United States National Security Advisor from 2017 to 2018. He is also known for his roles in the Gulf War, Operation Enduring Freedom, and Operation Iraqi Freedom.

In February 2017, McMaster succeeded Michael Flynn as President Donald Trump's National Security Advisor. He remained on active duty as a lieutenant general while serving as National Security Advisor, and retired in May 2018. McMaster resigned as National Security Advisor on March 22, 2018, effective April 9,and accepted an academic appointment to Stanford University in 2018.

McMaster is the Fouad and Michelle Ajami Senior Fellow at the Hoover Institution, the Bernard and Susan Liautaud Visiting Fellow at the Freeman Spogli Institute for International Studies and a lecturer in management at the Stanford Graduate School of Business.