The Battle of Brandywine, also known as the Battle of Brandywine Creek, was fought between the American Continental Army of General George Washington and the British Army of General Sir William Howe on September 11, 1777, as part of the American Revolutionary War (1775–1783). The forces met near Chadds Ford, Pennsylvania. More troops fought at Brandywine than at any other battle of the American Revolution. It was also the second longest single-day battle of the war, after the Battle of Monmouth, with continuous fighting for 11 hours.

As Howe moved to take Philadelphia, then the American capital, the British forces routed the Continental Army and forced them to withdraw, first, to the City of Chester, Pennsylvania, and then northeast toward Philadelphia.

Battle of Brandywine

Howe's army departed from Sandy Hook, New Jersey, across New York Bay from the occupied town of New York City on the southern tip of Manhattan Island, on July 23, 1777, and landed near present-day Elkton, Maryland, at the point of the "Head of Elk" by the Elk River at the northern end of the Chesapeake Bay, at the southern mouth of the Susquehanna River. Marching north, the British Army brushed aside American light forces in a few skirmishes. General Washington offered battle with his army posted behind Brandywine Creek, off the Christina River. While part of his army demonstrated in front of Chadds Ford, Howe took the bulk of his troops on a long march that crossed the Brandywine far beyond Washington's right flank. Due to poor scouting, the Americans did not detect Howe's column until it reached a position in rear of their right flank. Belatedly, three divisions were shifted to block the British flanking force at Birmingham Friends Meetinghouse and School, a Quaker meeting house.

Battle of Brandywine

After a stiff fight, Howe's wing broke through the newly formed American right wing, which was deployed on several hills. At this point Lieutenant General Wilhelm von Knyphausen attacked Chadds Ford and crumpled the American left wing. As Washington's army streamed away in retreat, he brought up elements of General Nathanael Greene's division, which held off Howe's column long enough for his army to escape to the northeast. Polish General Casimir Pulaski defended Washington's rear, assisting in his escape. The defeat and subsequent maneuvers left Philadelphia vulnerable. The British captured it two weeks later on September 26, resulting in the city falling under British control for nine months, until June of 1778.

Battle of Brandywine

Background

In late August 1777, after a distressing 34-day journey from Sandy Hook on the coast of New Jersey, a Royal Navy fleet of more than 260 ships carrying some 17,000 British troops under the command of British General Sir William Howe landed at the head of the Elk River, on the northern end of the Chesapeake Bay near present-day Elkton, Maryland (then known as Head of Elk), approximately 40–50 miles (60–80 km) southwest of Philadelphia. Unloading the ships proved to be a logistical problem because the narrow river neck was shallow and muddy.

General George Washington had placed the American forces, about 20,300-strong, between Head of Elk and Philadelphia. His forces were able to reconnoiter the British landing from Iron Hill near Newark, Delaware, about 9 miles (14 km) to the northeast. Because of the delay disembarking from the ships, Howe did not set up a typical camp but quickly moved forward with the troops. As a result, Washington was not able to accurately gauge the strength of the opposing forces.

After a skirmish at Cooch's Bridge south of Newark, the British troops moved north and Washington abandoned a defensive encampment along the Red Clay Creek near Newport, Delaware, to deploy against the British at Chadds Ford. This site was important as it was the most direct passage across the Brandywine River on the road from Baltimore to Philadelphia. On September 9, Washington positioned detachments to guard other fords above and below Chadds Ford, hoping to force the battle there. Washington employed General John Armstrong, commanding about 1,000 Pennsylvania militia, to cover Pyle's Ford, 5.8 miles south of Chadds Ford, which was covered by Major Generals Anthony Wayne's and Nathanael Greene's divisions. Major General John Sullivan's division extended northward along the Brandywine's east banks, covering the high ground north of Chadds Ford along with Major General Adam Stephen's division and Major General Lord Stirling's divisions. Further upstream was a brigade under Colonel Moses Hazen covering Buffington's Ford and Wistar's Ford. Washington was confident that the area was secure.