What events turned the soviet union from an ally to a competitor

Type the corect answer in the box.there were many causes of the enlightenment. however, a particular revolution played an important role in its development. this revolution was a result of discoveries made by scientists such as isaac newton and galileo galilei. they dug deep into the realms of science to discover new laws of physics and decipher the mysteries of the universe. the revolution refuted the claims of the catholic church about the position of earth in the solar system.this revolution is called what?

Were african-americans allowed to serve in the military in wwi?

Which of these events was a severe setback for the u.s. war effort in the pacific?