Beyond policy changes, the U.S. also paid a high political cost for the Vietnam War. ... More and more American citizens became suspicious, skeptical and cynical about the government and public institutions in the wake of the Vietnam War. The military, in particular, was discredited for years after the conflict.
according to google
Answer: The colonists hoped to get aid from foreign nations, the Congress hoped other colonists would join the Revolution, & the soldiers needed a good reason for fighting.
Explanation:
to increase profits for European colonists.
Great Britain were selling more crops than North America