Three Kings was the nickname of a famous Czech

Czechoslovakia

Czechoslovakia or Czecho-Slovakia was a sovereign state in Central Europe which existed from October 1918, when it declared its independence from the Austro-Hungarian Empire, until 1992...

 anti-nazi resistance group from 1939-1942. Its members were Josef Mašín (executed in 1942), Václav Morávek

Václav Morávek

Václav Morávek was Czechoslovak Brigadier General and national hero, one of best known personalities of Czech antinazi rezistance and member of famous resistance group called Three Kings....

 (killed in action in 1942), and Josef Balabán

Josef Balabán

Josef Balabán was a Czechoslovakian soldier mostly known for his involvement in resistance against Nazi Germany during World War II....

 (executed in 1941).

The group was established in 1939 when Nazi Germany

Nazi Germany

Nazi Germany , also known as the Third Reich , but officially called German Reich from 1933 to 1943 and Greater German Reich from 26 June 1943 onward, is the name commonly used to refer to the state of Germany from 1933 to 1945, when it was a totalitarian dictatorship ruled by...

 annexed Czechoslovakia. Their most important task was upholding radio contact with František Moravec

František Moravec

František Moravec was Czechoslovak military intelligence officer before and during World War II....

in Great Britain.