Ashton Baldwin Carter was an American government official and academic who served as the 25th United States secretary of defense from February 2015 to January 2017. He later served as director of the Belfer Center for Science &International Affairs at Harvard Kennedy School.
The Under Secretary of Defense for Acquisition and Sustainment,or USD (A&S),is the Principal Staff Assistant (PSA) and advisor to the Secretary of Defense for all matters relating to acquisition and sustainment in the Department of Defense. This includes the DoD Acquisition System;system design and development;production;logistics and distribution;installation maintenance,management,and resilience;military construction;procurement of goods and services;material readiness;maintenance;environment and energy resilience;utilities;business management modernization;International Armaments Cooperation,Cooperative Acquisition and International Agreements,Promoting exportability of military components to allies and partners;nuclear,chemical and biological defense programs;and nuclear command,control,and communications.
Kurt Michael Campbell is an American diplomat and businessman serving as the United States deputy secretary of state since 2024. He previously served as National Security Council coordinator for the Indo-Pacific from 2021 to 2024. In this capacity,Campbell had been referred to as the Biden administration's "Asia coordinator" or "Asia czar"—chief architect of Joe Biden's Asia strategy.
Raymond Francis DuBois Jr. is a private consultant in national security and defense policy and also a senior adviser at the Center for Strategic and International Studies,a nonpartisan think-tank in Washington,D.C. At CSIS he focuses on international security policy,civil-military relations,defense management reform,and Joint Professional Military Education. His expertise is in Defense Department organization,management and reform;land forces tactical and non-tactical systems;international and domestic installations and environmental issues;base realignment and closure;National Guard and Reserves issues;stability operations and reconstruction;continuity of business operations and crisis management. He was a member of the Defense Health Board and its NCR BRAC Health Systems Advisory Committee in 2006 to 2009. DuBois was a member of the Bipartisan Policy Center’s Commission on Stabilizing Fragile States. He is a member of the International Advisory Council of the United States Institute of Peace,a member of the Princeton University ROTC Board of Directors. He has spoken at the Maxwell School of Syracuse University,at the European Forum Alpbach 2008 in Austria,at the Marine Corps University,Quantico,Virginia,and before audiences of the National Defense Industry Association and the Association of the United States Army.
Celeste Ann Wallander is an American international relations advisor who currently serves as assistant secretary of defense for international security affairs at the United States Department of Defense.
The Assistant Secretary of the Army for Installations,Energy and Environment is a civilian office within the United States Department of the Army.
John F. Kirby is a retired United States Navy rear admiral serving as White House National Security Communications Advisor since 2022. He previously served in the Biden administration as Pentagon Press Secretary and Assistant to the Secretary of Defense for Public Affairs from 2021 to 2022. He worked as a military and diplomatic analyst for CNN from 2017 to 2021. He served in the Obama administration as Pentagon Press Secretary from 2013 to 2015 and as the spokesperson for the United States Department of State and Assistant Secretary of State for Public Affairs from 2015 to 2017.
Elizabeth D. Sherwood-Randall is an American national security and energy leader,public servant,educator,and author currently serving as the 11th United States Homeland Security Advisor to President Joe Biden since 2021. She previously served in the Clinton and Obama Administrations and held appointments at academic institutions and think tanks.
Colin Hackett Kahl is an American political scientist who served as under secretary of defense for policy in the Biden administration from April 28,2021,to July 17,2023. Previously,he served as national security advisor to the vice president under then-Vice President Joe Biden (2014–2017). After the Obama administration,Kahl served as a Steven C. Házy Senior Fellow at Stanford University.
Monica P. Medina is an American attorney and government official who previously served as the Assistant Secretary of State for Oceans and International Environmental and Scientific Affairs at the Department of State. Medina served as Principal Deputy Undersecretary of Commerce for Oceans and Atmosphere,deputy associate attorney general,and general counsel of National Oceanic and Atmospheric Administration. She was also the U.S. Commissioner to the International Whaling Commission. She is currently President and CEO of the Wildlife Conservation Society.
Christine Elizabeth Wormuth is an American defense official and career civil servant who serves as the United States Secretary of the Army since 2021. She is the first female United States Secretary of the Army.
Andrea Joan Palm is an American government health advisor who is the United States Deputy Secretary of Health and Human Services in the Biden administration. Previously,Palm served as secretary-designee of the Wisconsin Department of Health Services from 2019 to 2021 in the administration of Governor Tony Evers,an office she was never sworn into due to Republican opposition in the Wisconsin Senate.
Michael Stanley Regan is an American environmental regulator. He has been serving as the 16th administrator of the Environmental Protection Agency since March 11,2021. He is the first African American man to serve in the role.
Kathleen Anne Holland Hicks is an American civil servant who has served as the United States deputy secretary of defense since 2021. She is the first Senate-confirmed woman in this role and is the highest ranking woman to have served in the United States Department of Defense.
Deborah G. Rosenblum is an American nuclear expert and former career civil servant. She currently serves as the Assistant Secretary of Defense for Nuclear,Chemical &Biological Defense Programs in the Biden administration.
Christopher Paul Maier is an American government official who is the Assistant Secretary of Defense for Special Operations and Low-Intensity Conflict. He previously served as the Principal Assistant Secretary of Defense for Special Operations and Low-Intensity Conflict.
Rachel Jacobson is an American attorney and government official who is the assistant secretary of the Army for installations,energy and environment in the Biden administration.
Alexandra Nicole Baker,known as Sasha Baker,is an American policy advisor who served as deputy under secretary of defense for policy at the Department of Defense.
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