The answer would be, The role of women in world war 1.
Short explanation : Most of the men were at war and and the woman had to start working/get jobs. Women typically around WW1 were seen as housekeepers, and only house keepers, and society did not believe that they could hold steady jobs.
Answer: It allowed the United States to strongly influence foreign governments without treaties or military intervention.
Explanation: Diplomacy is essentially forming international relations, so doing such may be seen as imperialist as a nation may do this to grow their power and influence
I believe the other front was whoever can get to space first. The Soviets got the man in space but America got the first man on the moon.