Headquartered at the Pentagon in Arlington County, Virginia, just outside Washington, D.C., the stated mission of the Department of Defense is "to provide the military forces needed to deter …

The Department of Defense (DOD) provides the military forces needed to deter war, and to protect the security of the United States.

3 days ago · U.S. Department of Defense (DoD), executive division of the U.S. federal government responsible for ensuring national security and supervising U.S. military forces.

Select a Branch of Service from the list for an expanded menu of destination websites.

View the full A-Z list of all Department of Defense and service branch websites and social media sites. The Department of War has many components aside from the service branches. Find …

A .mil website belongs to an official U.S. Department of Defense organization in the United States. A lock ( ) or https:// means you’ve safely connected to the .mil website. Share sensitive …

Sep 5, 2025 · By the authority vested in me as President by the Constitution and the laws of the United States of America, it is hereby ordered: Section 1. Purpose.

Jan 22, 2025 · Defense Primer: The Department of Defense The Department of Defense (DOD) was established after World War II by the 1947 National Security Act (P.L. 80-253). At the …

The Cyber Awareness Challenge is the DoD baseline standard for end user awareness training by providing awareness content that addresses evolving requirements issued by Congress, the …

To date, DoD has published over 300 high-value datasets and tools for public consumption. The Department also contributed 55 of the initial 94 datasets included as part of the launch of the …