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Polish–Czechoslovak War
Part of the Polish-Czechoslovak border conflicts / From Wikipedia, the free encyclopedia
The Czechoslovak-Polish War, widely known in Czech sources as the Seven-Day War (Czech: Sedmidenní válka) was a military confrontation between Czechoslovakia and Poland over the territory of Cieszyn Silesia in early 1919.
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Czechoslovakia-Poland War | |||||||||
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Part of the Polish–Czechoslovak border conflicts | |||||||||
![]() Map of the war | |||||||||
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Belligerents | |||||||||
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Commanders and leaders | |||||||||
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Strength | |||||||||
15,000[1] |
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Casualties and losses | |||||||||
Total: 175–184 44–53 killed 124 injured 7 missing |
Total: 2,336 92 killed 855 injured 576 POWs 813 missing |
Czechoslovak forces invaded the Polish part (with an interim local civilian government, and with a strong majority support for allegiance to Poland, in reflection of earlier views, with the exception of the Frýdek, which had a Czech majority since 19th century settlement, and which had not at the time been claimed or controlled by the locals or the Polish side or a Polish political movement) of Cieszyn Silesia to prevent elections to the Polish Legislative Sejm in the disputed territory and to prevent the local population's contributions to the Polish army.[3][4] The Czechoslovak army made rapid advancements, capturing most of Cieszyn Silesia by the end of January. The bulk of the Polish army was engaged in the Polish–Ukrainian War at the time, and the Polish forces faced a numerically superior and better equipped Czech Army in Cieszyn Silesia.[5] The Entente had pushed for an armistice. The result of the war was the new demarcation line, which expanded the territory controlled by Czechoslovakia. It led to a new division of the region of Cieszyn Silesia in July 1920, and left a substantial Polish minority in Czechoslovakia in the region later called Trans-Olza because the demarcation line ran through the Olza river. The events, including later Czechoslovak policies in the territory led to further disputes including the 1938, Polish annexation.