Answer:
The Yalta Conference essentially confirmed the accords reach in the previous Allied conference at Teheran in 1943, in regards to the unconditional surrender of the Axis powers. What was confirmed in Yalta was the commitment to create a new international organization, better equipped than the previous Society of Nations. This organization would be the United Nations.
Explanation:
The Yalta Conference was the entry point of the Cold War, that would essentially began after the Postdam Conference in 1945. What made Yalta relevant, was the commitment to install the United Nations as a heir of the former Society of Nations of the 1920's, but with the aim that this new organization would have a better way of coercing nations to respect international laws. However the conference also saw the Soviet Union using the leverage it had regarding the war, to make the US help it to force Britain to accept for example the Soviet occupation of Poland, in exchange for the Soviet war declaration over Japan.
To the North slavery was morally wrong & cruel. But, also with the South pushing the expansion of slavery, the North felt as if it was taking more jobs away from the whites. Only about 25% of people owned slaves by 1860.
Answer: The third answer is Dwight Eisenhower if you have the question asking who was the commander of allied powers.
I think Filippo Brunelleschi's interest in mathematics, sculpture, and ancient Romans help him in the design of the Cupola by letting him measure out and calculate any difficulties of the structure along the way.