"Who were the Mycenaeans? How did they fall? Explain."

The reasons for the demise of the Mycenaean civilization, which occurred in stages from c. 1230 BCE to c. 1100 BCE, are debated. We do know that several sites were destroyed between 1250 and 1200 BCE, ushering in the so-called Post-Palatial period when the centralised system of palace control declined.

it was the "4. potsdam" conference that demanded the unconditional surrender of japan, since it was clear that the japanese would continue to find until the very last man otherwise.

the answer is   b. coronado.