America's<span> involvement in </span>World War II<span> had a significant </span>impact<span> on the </span>economy<span> and workforce of the United States. ... Our involvement in the </span>war<span> soon changed that rate. </span>American<span> factories were retooled to produce goods to support the </span>war<span> effort and almost overnight the unemployment rate dropped to around 10%.</span>
They had the Indians to help them. Plus, the colonist and the British were not that experienced to fight in the woods. I hope this helps!