United States Space Force Established to Defend American Space Interests The Space Force was signed into law on Dec. 20, 2019, as part of the 2020 National Defense Authorization Act. SpaceForce.mil went live shortly thereafter. On June 18, 2018, President Donald Trump directed the Pentagon to begin planning for a Space Force: a 6th independent military service branch to undertake missions and operations in the rapidly evolving space domain. December 20, 2019, Vice President, Mike Pence signed...

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