In the Battle of Grozny of August 1996 (also known as Operation Jihad or Operation Zero Option), Chechen rebels regained and then kept control of Chechnya's capital Grozny in a surprise raid. The Russian Federation had conquered the city during the Battle of Grozny (1994–1995) and posted there a large garrison of federal and republican Ministry of the Interior (MVD) troops. The much smaller rebel force infiltrated Grozny and either routed the MVD forces or split them into many pockets of resistance. Chechen separatists then beat back the Russian Ground Forces units that had been sent to eject the rebels and rescue their own trapped forces. The final result was a ceasefire that effectively ended the First Chechen War of 1994–1996.