Operation Silent Sentry was part of a proof of concept system in 2005. Back then, several Airmen were deployed to Al Udeid Air Base, Qatar, for 120 days. The mission was to test the capabilities of a new defensive counter-space system in support of joint warfighters in the area of responsibility and then leave once testing was complete. The capability was proven to be valuable in the protection of U.S. Central Command’s satellite networks, and 10 years later, OSS is still in business, and business is good.