Operation anthropoid was the plan to eliminate Reinhard Heydrich. Heydrich was a key player in the third Reich. Hitler regarded him highly. Heydrich was an efficient man.
He also was very harsh in suppressing enemy.
Hitler made him head of Czechoslovakia. He ran it with an iron hand. He made sure Czechs stay in line. Heydrich was made in charge of Jewish question.
Heydrich also chaired a meeting in wannsee. It discussed Jewish issue.