Final answer:
Deserters on America's side provided valuable information to the British during the American Revolution, such as the support of Indians and slaves for the British cause, as well as the grievances of the American people.
Step-by-step explanation:
During the American Revolution, deserters on America's side told the British various pieces of crucial information. They revealed that many Indians and slaves had sided with the British forces, seeing a British victory as their best chance to protect themselves from the colonists. They also informed the British about the grievances of the American people, such as the impressment of American sailors into British service, the burning of the US capitol by British soldiers, and the British presence in the Northwest Territory. These deserters played a significant role in providing intelligence to the British during the war.