WGS-4 Acoustic Chamber. A joint-service program funded by the U.S. Air Force and Army, WGS includes options for up to six Boeing 702 satellites and their associated spacecraft and payload control equipment. Operational and logistics support and training are also included in the program.

In 2002, the customer exercised options authorizing Boeing to build the first three WGS spacecraft. Boeing is currently building six WGS satellites and in 2010 was authorized to begin work on a seventh satellite. The first satellite WGS-1 was launched in 2007, and WGS-2 and WGS-3 were launched in 2009, all aboard a U.S. Air Force Evolved Expendable Launch Vehicle. The first satellite in the Block II series, WGS-4, was launched in 2012. WGS-5 and WGS-6 were both launched in 2013. WGS provides two-way X-band and Ka-band communications as well as Ka-band broadcast services to U.S. Armed Forces and other agencies worldwide.