August 10, 1949

Aug. 10, 1949
President Truman signs amendments to the National Security Act of 1947, converting the National Military Establishment to the Department of Defense.

Related Content

First Missile Warning Satellite Launch to MEO Slips, But More to Come

July 1, 2025
The Space Force's first planned satellite launch to begin a new missile warning constellation in medium-Earth orbit has slipped from late 2026 to spring 2027 as a key component remains unproven. But the service is making progress and moving forward with plans for new batches of satellites, the Guardian in charge…

Senate Passes Reconciliation Bill with Billions for Air Force and Space Force

July 1, 2025
The Senate passed Republicans’ sweeping tax-and-spending package July 1 in a 51-50 vote, the culmination of a 27-hour marathon legislative session. The package—often called the reconciliation bill—includes a $150 billion package of defense funds that accounts for a significant portion of the money the Air Force and Space Force want…

Senate Confirms New Commanders for Europe, Middle East, ACC

June 30, 2025
The Senate confirmed new leaders of U.S. forces in Europe and the Middle East over the weekend. Lawmakers on June 29 also approved a reshuffling of Air Force officials that will put new faces in the service’s Pentagon headquarters as well as at its largest command.

SDA’s Next Phase of Data Transport Satellites on Hold

June 30, 2025
The long-term future of one of the Space Development Agency’s two satellite constellations is on hold as officials study the options for replacing a planned “data transport layer” with one or more commercial solutions. President Trump’s proposed 2026 defense budget...

Air Force Munitions Gets Big Boost from Reconciliation

June 28, 2025
Thanks to reconciliation, the fiscal 2026 Air Force budget would get a surge of munitions procurement, but it's not yet clear if the production increase will be sustained. The Air Force revealed the secret AIM-260 air-to-air missile's funding for the first time.