The 1st Corps of the Army of the Republic of Bosnia and Herzegovina was solely established to defend Sarajevo and some part of the Sarajevo region. In 1997–1998, the 1st, 3rd and 7th Corps were incorporated into the 1st Corps of the Army of the Federation of Bosnia and Herzegovina.
1st Corps Operational Zone
The First Corps was responsible for the zone of Sarajevo during the war with the Bosnian Serb and Croat forces and its headquarters were established in Sarajevo. The First Corps had the assignment of protecting the Sarajevo, Gorazde zone from the opponents.
In January 1995, all Corps operational groups were transformed into divisions and each division contained numerous brigades, further divided into battalions, detachments and specialized units.
12th Division (Sarajevo)
101st Mountain Brigade, HQ Sarajevo-Mojmilo
102nd Motorized Brigade, HQ Sarajevo-Stup
105th motorized Brigade, HQ Sarajevo-Kosevo
111th Vitezka Motorized Brigade, HQ Sarajevo-Zuc Hill