France
France
Colonists
Lafayette.
For financial support
They didn't like the idea or purpose of the revolution like the Americans.
France Allied itself with the American Revolution after the Battle of Saratoga.
France and to a lesser degree The Netherlands (Holland) and Spain helped the colonists during the American Revolution (actually war for independence).
Spain and France aided the colonists during the American Revolution. They both saw the war as an opportunity to weaken their common rival, the British Empire.
During the american revolution the colonists regulated trade and taxes since the American Revolution was precipitated.
During the American Revolution, France supplied the new American government with money (gold and French Francs), soldiers, and the French Navy. After the Americans defeated the British at the Battle of Saratoga, the French realized the American colonists could defeat the British regulars, and that helping the Americans would potentially weaken their hated British rivals.
Both France and Spain provided support to the Continental Army against the UK.