Resttschechei or Rest-Tschechei (English: the rump Czech state, literally the rest of Czechia) was the Nazi designation used for the remaining Czech parts of Czecho-Slovakia that were de facto annexed by Nazi Germany on 15/16 March 1939 as the Protectorate of Bohemia and Moravia with its military occupation. This occurred after an ultimatum was presented to Czecho-Slovak president Emil Hacha during his March visit to Hitler in Berlin, threatenening that its rejection would mean the downright enslavement of the autonomous Czech population.
Czechoslovakia had already lost significant territories in 1938 and 1939, which were either ceded to other countries or broke off:
The Sudetenland, which after the intervention in the Munich Conference (10 October 1938) by the United Kingdom, France, and Italy, was peacefully annexed by Nazi Germany on 21 November.
Zaolzie (parts of Czech Silesia around Český Těšín) were taken by Poland in 1938. After the German invasion of Poland this territory was incorporated into the German Province of Silesia.
Felvidék or Upper Hungary (southern parts of Slovakia and Carpathian Ruthenia) was annexed by Hungary in 1938 after German consent. Slovakia declared its independence on 14 March 1939 at the instigation of Nazi Germany. Before this it had already lost much of its ethnic Hungarian southern lands to Hungary in the First Vienna Award, as well as a strip of territory in the east during the Slovak-Hungarian War.
