They first invaded France to regain access to France. This is called the Battle of Normandy and also known as D-Day. The tide turned in the Pacific when American forces invaded Midway, a Japanese controlled island in the pacific. The atomic bomb dropped on Hiroshima and Nagasaki was the final push for the end of the long fought war.
To become an ally. To import amd export goods to eachother amd better eachothers economies.
Answer:
I think no 3 is the answer
Trade with the Indians for food was a major factor but also new leadership and more colonists coming over with necessities for survival