The United States secretary of defense (SecDef) is the head of the United States Department of Defense, the executive department of the U.S. Armed Forces, and is a high-ranking member of the federal cabinet. The secretary of defense's position of command and authority over the military is second only to that of the president of the United States, who is the commander-in-chief. This position corresponds to what is generally known as a defense minister in many other countries. The secretary of defense is appointed by the president with the advice and consent of the Senate, and is by custom a member of the Cabinet and by law a member of the National Security Council.
The Defense Superior Service Medal (DSSM) is a military decoration of the United States Department of Defense, which is presented to United States Armed Forces service members who perform superior meritorious service in a position of significant responsibility.
The United States Department of War, also called the War Department, was the United States Cabinet department originally responsible for the operation and maintenance of the United States Army, also bearing responsibility for naval affairs until the establishment of the Navy Department in 1798, and for most land-based air forces until the creation of the Department of the Air Force on September 18, 1947.
The military budget of the United States is the largest portion of the discretionary federal budget allocated to the Department of Defense (DoD), or more broadly, the portion of the budget that goes to any military-related expenditures. The military budget pays the salaries, training, and health care of uniformed and civilian personnel, maintains arms, equipment and facilities, funds operations, and develops and buys new items. The budget funds six branches of the US military: the Army, Navy, Marine Corps, Coast Guard, Air Force, and Space Force.
Lloyd James Austin III is a retired United States Army four-star general who has served as the 28th and current United States secretary of defense since January 22, 2021.
In the United States Armed Forces, a lieutenant general is a three-star general officer in the United States Army, Marine Corps, Air Force, and Space Force.
The United States Department of Defense is an executive branch department of the federal government of the United States charged with coordinating and supervising all agencies and functions of the U.S. government directly related to national security and the United States Armed Forces. As of June 2022, the U.S. Department of Defense is the largest employer in the world, with over 1.34 million active-duty service members, including soldiers, marines, sailors, airmen, and guardians. The Department of Defense also maintains over 778,000 National Guard and reservists, and over 747,000 civilians bringing the total to over 2.87 million employees. Headquartered at the Pentagon in Arlington County, Virginia, just outside Washington, D.C., the Department of Defense's stated mission is to provide "the military forces needed to deter war and ensure our nation's security".
John F. Kirby is a retired United States Navy rear admiral serving as White House National Security Communications Advisor since 2024. 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 and as Coordinator for Strategic Communications at the National Security Council in the White House from 2022 to 2024. 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.
Andrea D. Tullos is a lieutenant general in the United States Air Force who serves as the commander and president of the Air University. She previously served as deputy commander of the Air Education and Training Command. She has also commanded the Second Air Force at Keesler Air Force Base. In April 2021, she was assigned to become the deputy commander of the Air Education and Training Command, replacing Major General William A. Spangenthal. In May 2022, she was nominated for promotion to lieutenant general and assignment as the commander and president of Air University.
Donna D. Shipton is a United States Air Force lieutenant general who serves as commander of the Air Force Life Cycle Management Center. The center is responsible for total life cycle management for aircraft, engines, munitions, electronic, computer, network, cyber and agile combat support systems. The center employs more than 28,000 people and has a budget of over $300 billion. Previously she served as military deputy to the Assistant Secretary of the Air Force for Acquisition, Technology and Logistics.
Douglas Andrew Schiess is a United States Space Force lieutenant general who serves as the commander of United States Space Forces – Space and combined joint force space component commander of the United States Space Command. He previously served as the commander of Combined Force Space Component Command and vice commander of Space Operations Command.
The All-domain Anomaly Resolution Office (AARO) is an office within the United States Office of the Secretary of Defense that investigates unidentified flying objects (UFOs) and other phenomena in the air, sea, and/or space and/or on land: sometimes referred to as "unidentified aerial phenomena" or "unidentified anomalous phenomena" (UAP). Its first director was physicist Sean Kirkpatrick, and its current acting director is Tim Phillips who reports to Deputy Defense Secretary Kathleen Hicks.
Stephen G. Purdy Jr. is a United States Space Force major general who serves as the military deputy to the assistant secretary of the Air Force for space acquisition and integration. He previously served as commander of Space Launch Delta 45, program executive officer for assured access to space, director of the Eastern Range, and director of launch and range operations of Space Systems Command.
The Commission on the Naming of Items of the Department of Defense that Commemorate the Confederate States of America or Any Person Who Served Voluntarily with the Confederate States of America, more commonly referred to as the Naming Commission, was a United States government commission created by the United States Congress in 2021 to create a list of military assets with names associated with the Confederate States of America and recommendations for their removal.
Troy Edward Dunn is a United States Air Force major general who has served as special assistant and senior military advisor with duties at the Office of the Under Secretary of Defense for Personnel and Readiness since June 2023. He most recently served as commander of the Air Force Personnel Center from 2022 to 2023.
