The fact that Germany invaded France if your talking about the First World War
If your talking about the second it was because Germany invaded Poland and Britain had an alliance with Poland promising to protect it.
Answer:
I'm pretty sure it's C. Moscow
Explanation:
During the Cold War the United States and the Soviet Union engaged a competition to see who had the best technology in space. This included such events as who could put the first manned spacecraft into orbit and who would be the first to walk on the Moon.
They believed that acquisition of Africans was a necessity because they didn't want to work and wanted to get rich, but they couldn't enslave white people or have indentured servants because the emperor freed them.