The mission of 4th SOPS is to ensure the Milstar system provides survivable, enduring, critical essential command and control communications through all levels of conflict for the president, the Secretary of Defense, and war fighting combatant commanders worldwide. 4th SOPS operates the $31 billion Milstar system executing communications management, satellite command and control, and ground segment maintenance for the Milstar constellation. 4th SOPS' motto "Linking the Forces" reflects Milstar's responsibility to enhance the nation's secure communications capability for today's military forces.