The Intergalactic Coalition of Free Systems, or the Galactic Coalition, was an alliance of three major intergalactic organizations and several smaller organizations. The three major organizations were the Galactic Republic, the Jedi Order, and the Mandalorian Empire. The Galactic Coalition's founding document was the Treaty of Coruscant, which also acted as a cease fire for the Second Mandalorian Wars. The Galactic Coalition was founded in 3,939 BBY and fought the Sith Empire under Lord Kaidius in the Galactic Sith Purge.