The Revolutionary War was an endurance test

Salutary neglect was an unofficial British policy of leaving the American colonies largely to their own devices, allowing them to manage their own local laws and economies for decades. This "hands-off" approach ended after the Seven Years’ War, when Britain incurred a massive national debt and began imposing direct taxes like the Stamp Act and Sugar Act to pay for colonial defense. The shift from autonomy to strict imperial control created deep resentment, as colonists argued they should not be taxed by a Parliament in which they had no elected representatives.

The Battle of Saratoga in 1777 was a major military victory where American forces defeated and captured a large British army under General John Burgoyne. This success served as critical diplomatic proof to the rest of the world that the colonists had a realistic chance of winning the war. Most importantly, it convinced France to formally enter the conflict as an American ally, transforming a local colonial rebellion into a global war that forced Britain to divert military resources away from North America to defend its other global interests.

The Continental Army was a professional national force led by George Washington, consisting of soldiers who eventually underwent formal training, such as the drilling provided by Baron von Steuben at Valley Forge. In contrast, state militias were "irregulars" or local citizens called up for short-term service. While the militias were often undisciplined and struggled in open-field battles, they were highly effective at using guerrilla tactics, harassing British supply lines, and ambushing troops in dense forests and swamps.

The French navy was the decisive factor in the surrender of Lord Cornwallis at Yorktown in 1781. By winning the Battle of the Capes, the French fleet established control over the Chesapeake Bay, creating a "naval noose" that prevented the British Royal Navy from rescuing or reinforcing Cornwallis by sea. This trapped the British army on the Yorktown peninsula, leaving them surrounded by Franco-American ground forces and forcing a surrender that effectively ended major combat operations in the war.

The war was a complex and often tragic experience for marginalized groups. Approximately 20,000 Black men fought in the conflict, with many joining the British side in exchange for promises of freedom, though most remained enslaved after the war regardless of which side they supported. For Native Americans, the Revolution was often a disaster; the Iroquois Confederacy split apart as different tribes chose sides, and many tribes sided with the British in a failed attempt to stop colonial expansion into their ancestral lands.