[Ancapistani]

The US won the Revolutionary War because ultimately France joined in against the British. The French provided substantial support and training for the Continental Army, and the French navy held the British fleet at bay.

The land battles that were won by the Continental Army were won using the standard tactics of the day.

[GhettoComputers]

There’s lots of reasons, they had the forage war and used guerilla tactics, ambushes and non conventional warfare since they’d lose a head to head war.