A military satellite is a man-made satellite used for a military purpose. the foremost common missions square measure intelligence gathering, navigation and military communications. the primary military satellites were photographic reconnaissance mission missions. Some tries were created to develop satellite primarily based weapons however this work was halted in 1967 following the agreement of international treaties ban the preparation of weapons of mass destruction in orbit.
As of 2013, there square measure 950 satellites of every type in Earth orbit. it's inconceivable to spot the precise range of those that square measure military satellites part because of secrecy and part because of twin purpose missions like GPS satellites that serve each civilian and military functions
