The Ministry of National Defense of the Czechoslovak Republic (, MNO ČSR; later MNO ČSSR and MNO ČSFR) refers to the defence ministry which was responsible for defense of Czechoslovakia during its existence, from 1918 to 1992. List of ministers First Czechoslovak Republic (1918–1938) Second Czechoslovak Republic (1938–1939) Czechoslovak government-in-exile (1940–1945) Third Czechoslovak Republic (1945–1948) Czechoslovak Socialist Republic (1948–1989) Czech and Slovak Federative Republic (1989–1992) Ministry of National Defence troops, late 1980s The Ministry was located in Prague, but many directorates had installations outside the capital. The details are based on the Czech Ministerstvo narodni obrany website, which lists all units of the Czechoslovak People's Army in existence between 1950 and 1990, with their location, subordination, equipment and changes over time. Main Missile Troops and Artillery Directorate Central Ammunition Depot in Týniště nad Orlicí 6th Armament Base in Olomouc Ammunition Depot Hronsek Ammunition Depot Sklené Ammunition Depot Trenčín Ammunition Depot Poprad Military Repair Plant Moldava nad Bodvou Separate Ammunition Depot Moldava nad Bodvou Military Repair Plant Nováky Separate Ammunition Depot Nováky Main Political Department Political Military Academy in Bratislava Main Medical Department Main Military Transport Directorate 150th Military Traffic Office in Čierna nad Tisou Main Construction and Accommodation Directorate 1st Road Construction Brigade in Pardubice 103rd Road Construction Battalion in Klecany 104th Road Construction Battalion in Nepomuk 107th Road Construction Battalion in Chrudim 108th Road Construction Battalion in Prague 109th Road Construction Battalion in Stará Boleslav 112th Road Construction Battalion in České Budějovice 113th Road Construction Battalion in Týn nad Vltavou 115th Road Construction Battalion in Týn nad Vltavou 116th Road Construction Battalion in Horažďovice 2nd Road Construction Brigade in Bratislava 101st Road Construction Battalion in Vyškov 102nd Road Construction Battalion in Liptovský Mikuláš 105th Road Construction Battalion in Bratislava 106th Road Construction Battalion in Levice 110th Road Construction Battalion in Zbraslav 114th Road Construction Battalion in Levice Equipment Department Quartermaster Department Combat Training Department Educational Department Military Ground Forces University in Vyškov Military Air Forces University in Košice 1st Air School Regiment in Přerov with MiG-21F-13 fighters 1st Flight School Squadron 2nd Flight School Squadron 3rd Flight School Squadron 4th Flight School Squadron 28th Air Base Battalion 11th Electronic Support Battalion 2nd Air School Regiment in Košice with Aero L-29 Delfín and L-39 Albatros jet trainers 1st Flight School Squadron 2nd Flight School Squadron 3rd Flight School Squadron 4th Flight School Squadron 20th Air Base Battalion 4th Electronic Support