On 6th April 1941, Germans started bombing Belgrade, the capital of Yugoslavia, in retaliation for the coup d’état that overthrew the government that had signed the Tripartite Pact in operation known as…?  

Unternehmen‌ ‌Strafgericht‌ ‌‌(‌Operation Retribution)‌ (3 točke)

a.) Unternehmen Strafgericht (Operation Retribution)

b.) Fall Schwarz (Case Black)

c.) Operation Kugelblitz (Ball Lightning)

Unternehmen‌ ‌Strafgericht‌ ‌‌(Operation Retribution)‌ (2 točki)

The Tripartite Pact – a defensive military alliance between Japan, Italy, and Germany that was eventually joined by Hungary, Romania, Bulgaria, Slovakia and Yugoslavia was signed where?

a.) Rome

b.) Berlin

Berlin‌ (1 točka)