The U.S. Space Force was established on December 20, 2019, as the sixth branch of the U.S. military.
Notes on verification
Confirmed by multiple independent, authoritative sources including Congressional Research Service, Wikipedia, and Military Times, all consistent on date and branch status.
Sources
- Secretary of Defense Engagement at RAND Corporation ( ... (defense.gov)
- https://www.congress.gov/crs_external_products/IF/PDF/IF11495/IF11495.1.pdf (congress.gov)
- https://www.militarytimes.com/news/your-military/2019/12/21/the-space-force-is-officially-the-sixth-military-branch-heres-what-that-means/ (militarytimes.com)