This is a list of wars involving the Czech Republic and its predecessor states.
| Year | War | Allies | Enemies | Conclusion |
|---|---|---|---|---|
| 626 | War against Avars | Samo's empire | Avar Khaganate | Victory |
| 631 | War between Samo's empire and Frank Empire | Samo's empire | Francia | Victory |
| 79?-795 | Francian Campaigns against Avars | Czechs Francia | Avar Khaganate | Victory |
| 805 | Great Turkestan War | Czechs | Francia | Victory |
| 833 | Conquest of Nitrian Principality | Great Moravia | Principality of Nitra | Victory |
| 848-849 | Louis the German's campaign against Bohemia | Bohemia | East Francia | Victory |
| Year | War | Allies | Enemies | Conclusion |
|---|---|---|---|---|
| 1530-1552 | Little War in Hungary | Kingdom of Bohemia Holy Roman Empire | Ottoman Empire | Indecisive |
| 1546-1547 | Schmalkaldic War | Kingdom of Bohemia Holy Roman Empire Spain | Schmalkaldic League | Victory |
| 1611 | Invasion of Passau Army | Kingdom of Bohemia | Roman Catholic Diocese of Passau | Victory |
| 1618-1620 | Bohemian Revolt | Bohemia | Holy Roman Empire | Defeat |
| 1620-1648 | Thirty Years' War | Bohemia Holy Roman Empire Spanish Empire | Protestant states | Peace of Westphalia |
| 1680 | Peasant Uprising | Czech Peasants | Austrian Empire | Defeat |
| 1775 | Peasant Uprising | Czech Peasants | Austrian Empire | Defeat |
| 1848 | Czech Revolution | Czechs | Austrian Empire | Defeat |
| 1914 - 1918 | World War I | Czechoslovak Legions Triple Entente | Central Powers | Victory |
| 1917- 1922 | Russian Civil War | Czechoslovak Legions White Movement | Russian Soviet Federative Socialist Republic | Legions did get in Vladivostok, White army defeated |
| Year | War | Allies | Enemies | Losses | Conclusion |
|---|---|---|---|---|---|
| 1919 | Polish–Czechoslovak War | Czechoslovakia | Poland | 44-53 killed | Indecisive |
| 1918-1920 | Revolutions and interventions in Hungary | Czechoslovakia Romania | Hungary | 2824 killed or missing | Victory |
| 1932-1935 | Chaco War | Bolivia Czechoslovakia | Paraguay | Defeat | |
| 1938 | Sudeten German uprising | Czechoslovakia | German Insurgents | 100 killed | Partial defeat |
| 1938 | Capture of Zaolzie | Czechoslovakia | Second Polish Republic | 2 killed | Defeat |
| 1939 | Axis invasion of Czechoslovakia | Czechoslovakia | Nazi Germany | 1 killed | Defeat |
| 1939 | Hungarian Invasion of Carpatho-Ukraine | Czechoslovakia | Kingdom of Hungary Ukrainian nationalists | 40 killed | Defeat |
| 1939-1945 | World War II | Czechoslovak government-in-exile Allies | Axis powers | 325,000 killed | Victory |
| 1945 | Racibórz Conflict | Czechoslovakia | Poland | None | Agreement |
| 1945-1947 | Operation B | Czechoslovakia Poland Soviet Union | Ukrainian Insurgent Army | 49 killed | Victory |
| 1948-1949 | Israeli War of Independence | Israel supported by Czechoslovakia | Arab states | None | Victory |
| 1950-1953 | Korean War | Communist states including Czechoslovakia | South Korea United Nations | None | Military stalemate; Ceasefire reached through Korean Armistice Agreement |
| 1953 | Merklín incident | Czechoslovakia | United States | None | Victory |
| 1953 | Uprising in Plzeň | Czechoslovakia | Plzeň workers | None | Uprising crushed |
| 1955-1975 | Vietnam War[4] | Communist states including Czechoslovakia | South Vietnam United States | None | Victory |
| 1968 | Warsaw Pact invasion of Czechoslovakia | Czechoslovakia | Warsaw Pact | 137 killed | Defeat |
| 1970s-1980s | Angolan Civil War | MPLA supported by: Czechoslovakia and others | UNITA | 1 killed | Victory |
| 1990-1991 | Gulf War | Czechoslovakia United States and other | Iraq | 1 killed | Victory |
| 1999 | Kosovo War | NATO including the Czech Republic | Federal Republic of Yugoslavia | None | Victory |
| 2002-2021 | War in Afghanistan | Czech Republic United States United Kingdom and others | Insurgents | 14 killed | Defeat |
| 2003-2009 | Iraq War[5] | Czech Republic United States United Kingdom and others | Insurgents | 1 killed | Victory |
| 2004 | Unrest in Kosovo[6] [7] | Czech Republic Kosovo Force | Kosovo Albanians | None | Unrest suppressed Peace reached through mutual agreement |
| 2011 | First Libyan Civil War[8] | Anti-Gaddafi movement NATO supported by the Czech Republic | Libya | None | Victory |
| 2012-present | Mali War | Czech Republic Mali France ECOWAS | National Movement for the Liberation of Azawad Islamists | None | Ongoing |