Trans-Olza, also known as Trans-Olza Silesia, is a territory in the Czech Republic, which was disputed between Poland and Czechoslovakia during the Interwar Period. Its name comes from the Olza River.
Leadership of the Civic Defence – Czech paramilitary organisation active in Cieszyn Silesia
Czech anti-Polish leaflet aimed at Cieszyn Silesians
Polish anti-Czech agitation leaflet
"For 600 years we have been waiting for you (1335–1938)." Ethnic Polish band welcoming the annexation of Trans-Olza by the Polish Republic in Karviná, October 1938
Karviná District is a district in the Moravian-Silesian Region of the Czech Republic. Its capital is the city of Karviná, but the most populated city is Havířov.
Český Těšín and surrounding landscape
Memorial to the victims of Nazi terror