Answer: 1.The British made many promises to the Native Americans to convince them that they should provide support to the British government and military in the Revolutionary War. The American Colonists kept pressing westward and north into the Indian lands. 3.On June 21, 1779, Spain declares war on Great Britain, creating a de facto alliance with the Americans. Spain's King Charles III would not consent to a treaty of alliance with the United States. As the ally of the United States' ally, Spain managed to endorse the revolt at a critical diplomatic distance.
I do not know #2
Explanation: