Chairman Welcome Army Gen. Mark A. Milley, chairman of the Joint Chiefs of Staff, welcomes Space Force Gen. John W. “Jay” Raymond, chief of Space Operations, into the Joint Chiefs of Staff at the Pentagon, Dec. 11, 2020. The Space Force, established on Dec. 20, 2019, is the newest branch of military service tasked with protecting U.S. and allied interests in space and providing space capabilities to the joint force. SHARE IMAGE: Download Image: Full Size (1.72 MB) Tags: Milley, chairman Photo By: Navy Petty Officer 1st Class Carlos M. Vazquez II, DOD VIRIN: 201211-D-WD757-0160.JPG Photo Gallery