During Air Force Space Command’s recently concluded Schriever Wargame 2018 at Maxwell Air Force Base, Alabama, the U.K. was put in charge of the so-called Special Capabilities Integration Cell. This cell is where commanders simulated how the U.S., U.K., Australia and Canada would combine their space capabilities to fend off attacks in a potential conflict.

“In this game, we had the first ever high-level coalition cell,” Air Force Brig. Gen. DeAnna Burt, director of operations and communications at U.S. Air Force Space Command, said last week in Washington. “Partners brought future capabilities they’d like to build at the SAP [special access program] level,” she said. “Britain ran the cell.”