The US and the Soviet Union
a. Air raid on Pearl Harbor
b. nothing
c. September 1, 1939 - Germany invades Poland
d. Germany and the Soviet Union sign a non-aggression pact
I'm guessing its a and c
Aztec enemies allied themselves with Spanish invaders.
Answer:
option A is the correct answer...
Guinness says that Operation Overload in World War II was the greatest but each teacher probably has a different answer