# SpaceX U.S. Space Force launches from Vandenberg > Live situation record from CLSTR: https://clstr.news/situations/spacex-us-space-force-launches-from-vandenberg > Updated: 2026-10-10T10:54:45.000Z. Sources: 23. Developments: 5. SpaceX has conducted several classified U.S. Space Force missions from Vandenberg Space Force Base in September and October 2026. On September 9, SpaceX scheduled the USSF-153 mission using a Falcon 9 rocket. The mission involved a classified payload, and the company planned to end its live webcast after the first-stage booster landing to protect sensitive information. The booster, B1081, was slated to land on the droneship ‘Of Course I Still Love You’. On September 25, SpaceX successfully launched the USSF-385 mission from Space Launch Complex 4E. As with previous national security deployments, SpaceX terminated its public webcast shortly after the first-stage booster, B1100, landed on the droneship ‘Of Course I Still Love You’ in the Pacific Ocean. This mission marked the third national security launch conducted by the company from Vandenberg in a 16-day period, following the USSF-153 and USSF-259 missions. On October 4, SpaceX scheduled the Tranche 1 Transport Layer A (T1TL-A) mission to launch 21 data transport satellites for the U.S. Space Force’s Space Development Agency (SDA). These satellites are part of the Proliferated Warfighter Space Architecture (PWSA), a distributed constellation designed for orbital observation, missile tracking, and secure communications. After the mission was scrubbed on October 5 when the countdown halted at approximately T−58 seconds, SpaceX successfully launched the 21 Northrop Grumman-built satellites on October 10. This successful launch delivered the fourth orbital plane for the transport layer. The T1TL satellites are designed to provide resilient, high-volume, and low-latency tactical communications, including Link 16 data links. The SDA expects the initial warfighting capabilities of the Tranche 1 constellation to be realized in 2027. ## Timeline ### 2026-10-10: Space Development Agency launches 21 military communication satellites The Space Development Agency launched 21 Northrop Grumman satellites via SpaceX Falcon 9 to bolster its Tranche 1 military communications network in low Earth orbit. 3 sources. https://clstr.news/cluster/space-development-agency-launches-21-military-communication-satellites ### 2026-10-05: SpaceX scrubs SDA satellite launch from Vandenberg SpaceX scrubbed a Falcon 9 launch intended to deploy 21 Space Development Agency satellites for military communications. A rescheduled launch is being targeted for early October. 4 sources. https://clstr.news/cluster/spacex-scrubs-sda-satellite-launch-from-vandenberg ### 2026-10-04: SpaceX to launch 21 SDA satellites for U.S. Space Force SpaceX will launch 21 SDA data transport satellites via a Falcon 9 rocket to build the U.S. Space Force’s Proliferated Warfighter Space Architecture for continuous orbital monitoring. 5 sources. https://clstr.news/cluster/spacex-to-launch-21-sda-satellites-for-us-space-force ### 2026-09-25: SpaceX launches classified USSF-385 mission from Vandenberg SpaceX launched the classified USSF-385 mission for the U.S. Space Force via a Falcon 9 rocket from Vandenberg Space Force Base, successfully landing the booster on a drone ship after liftoff. 12 sources. https://clstr.news/cluster/spacex-scheduled-to-launch-ussf-385-mission-from-vandenberg ### 2026-09-09: SpaceX to launch USSF-153 classified mission from Vandenberg SpaceX is set to launch a classified U.S. Space Force payload via a Falcon 9 rocket from Vandenberg Space Force Base this Thursday morning. 5 sources. https://clstr.news/cluster/spacex-to-launch-ussf-153-classified-mission-from-vandenberg --- Cite as: SpaceX U.S. Space Force launches from Vandenberg. CLSTR, https://clstr.news/situations/spacex-us-space-force-launches-from-vandenberg