On September 9, 1941, the Nazi-puppet state of Slovakia ratified the Jewish Codex, paving the way for the exclusion, deportation, and mass extermination of Slovak Jews during the second half of World War II. In September 1938, the Munich agreement sanctioned Nazi Germany’s annexation of the Sudetenland, while the First Vienna Award in November forced Czechoslovakia to surrender large parts of southern Slovakia to Hungary. One day before Nazi troops entered the Czech lands from the west in March 1939, Slovak authorities nominally declared independence to become a puppet state of the Third Reich, led by Catholic priest Jozef Tiso....