Date | Conflict | Combatant 1 | Combatant 2 | Result |
First Czechoslovak Republic |
1918–1919 | Hungarian-Czechoslovak War | Czechoslovakia | Until 21 March 1919: Hungarian Republic From 21 March 1919: Hungary | Slovak defeat; formation of the short lived Slovak Soviet Republic |
1919 | Polish-Czechoslovak War | Czechoslovakia | Poland | Cieszyn Silesia divided between Czechoslovakia and Poland[1] |
Second Czechoslovak Republic |
1938 | Sudeten German uprising | Czechoslovakia | SdP sympathisers[2] Germany | Uprising partially suppressed |
Slovak Republic (partially recognised) |
1939 | Slovak-Hungarian War | Slovak Republic (1939–1945) | Hungary | Slovak defeat[3] |
1939–1945 | World War II | Axis: Slovak Republic (1939–1945)[4][5] Nazi Germany Japan Hungary | Allies: United States Poland France Czechoslovakia Soviet Union | Victory of the Allies and Czechoslovakia (with the Slovak National Council on their side); defeat and dissolution of the Slovak Republic,[6] which according to Czechoslovak law (and the theory of legal continuity) never existed. The current Slovak Republic does not consider itself a successor state of the wartime Slovak Republic. |
Third Czechoslovak Republic |
1948 | 1948 Czechoslovak coup d'état | Czechoslovakia | Communist Party Soviet Union | Appointment of a communist-dominated government[7] |
Czechoslovak Socialist Republic |
1950–1953 | Korean War | Czechoslovakia[8] North Korea China Soviet Union Bulgaria East Germany Hungary Poland Romania | South Korea United States United Nations | Military stalemate; Korean Conflict continues |
1953 | Air battle over Merklín | Czechoslovakia | United States | Czechoslovak victory; 1 American F-84 Thunderjet is shot down, but the pilot survives. |
1953 | Plzeň uprising of 1953[9] | Czechoslovakia | Plzeň Workers | Czechoslovak victory; uprisings suppressed |
1955–1975 | Vietnam War | Czechoslovakia,[citation needed] North Vietnam, Viet Cong, , Khmer Rouge, Khmer Issarak, Pathet Lao, China, North Korea, Soviet Union, Cuba, Poland, Hungary, East Germany, Bulgaria, Romania | South Vietnam, United States, South Korea, Thailand, Australia, New Zealand, Laos, Khmer Republic, Philippines, Turkey, Spain, Taiwan, Brazil, Japan, Iran, Malaysia, West Germany, United Kingdom | North Vietnam-Viet Cong victory; formation of the Socialist Republic of Vietnam |
1968–1975 | Cambodian Civil War | Czechoslovakia GRUNK North Vietnam Viet Cong Soviet Union China Cuba Romania | Cambodia Khmer Republic United States South Vietnam Australia Canada France Malaysia Singapore Thailand | GRUNK-North Vietnamese victory; establishment of Democratic Kampuchea |
1968 | Warsaw Pact invasion of Czechoslovakia | Czechoslovakia | Poland Soviet Union Bulgaria East Germany Hungary | Warsaw Pact victory[10] |
1978–1989 | Cambodian-Vietnamese War | Czechoslovakia Vietnam Kampuchea Soviet Union Poland East Germany | Democratic Kampuchea Thailand China Malaysia Singapore United Kingdom United States (alleged) | Vietnamese victory; collapse of Democratic Kampuchea |
Czech and Slovak Federative Republic |
1990–1991 | Gulf War | Czechoslovakia, Kuwait, United States, United Kingdom, Saudi Arabia, Egypt, France, Syria, Morocco, Oman, Pakistan, Canada, United Arab Emirates, Qatar, Bangladesh, Italy, Australia, Netherlands, Niger, Philippines, Sweden, Argentina, Senegal, Spain, Bahrain, Belgium, Poland, South Korea, Singapore, Norway, Greece, Denmark, New Zealand, Hungary | Iraq | Coalition victory |
Slovakia |
2001–present | War on Terror | Slovakia NATO | Al-Qaeda ISIL Afghan Taliban Pakistani Taliban | Ongoing conflict • Taliban victory in the War in Afghanistan (2001–2021) |