Answer:
The city of Lidice.
Step-by-step explanation:
After the assassination attempt of Reich Protector Reinhard Heydrich, at the hands of a Czech and Slovak soldiers on the morning of May 27th, 1942, and the following dead of the nazi Protector on June 4, the SS-Gruppenführer Karl Hermann Frank declared a state of emergency. All who were found guilty of cooperating with the assassins had to be executed along with their families.
The attackers were not found, so after Reinhard's death, the Fuhrer himself commanded that any village found to have sheltered Heydrich's attackers should be burnt down entirely, its men executed, its women transported to a concentration camp, and their suitable children gathered for Germanization. The nazi regime chooses the village of Lidice.