Which country worked with the us after world war ii to build rockets for the us space program? italy japan germany the soviet union

Germany

The United States created a secret program called "Operation Paperclip" in which German scientists, engineers and technicians, some of them with ties to the Nazi Party, were taken to the United States between 1945 and 1959. These scientists were meant to cooperate with the U. S. so that the country could gain military advantage in the Cold War and the Space Race.

what are the options so i can answer it

i belive the continental association was created to boycott all contact with british goods.

i also belive it was in december 1, 1774