Following the British capture of Philadelphia on September 26, 1777, and the failure of the American surprise attack at the Battle of Germantown on October 4, the Continental Army sought to deny the British use of the city by blockading the Delaware River. To control this vital waterway, two forts were constructed: Fort Mercer on the New Jersey side at Red Bank and Fort Mifflin on Mud Island in the Delaware. This strategic positioning was intended to obstruct British supply lines and maintain American influence over the region despite the loss of Philadelphia.
On October 22, 1777, a force of 1,200 Hessian troops was sent to capture Fort Mercer, but they were defeated by a smaller force of Continental Army troops defending the position. The battle represented a significant clash in the struggle for control of the Delaware River and the approaches to Philadelphia.
Although Fort Mercer ultimately fell to the British a month later, the victory at the Battle of Red Bank served as a much-needed morale boost to the Patriot cause. The successful defense delayed British plans to consolidate gains in Philadelphia and relieved pressure on Washington's Continental Army, which was positioned north of the city. This engagement demonstrated American resilience and capacity to inflict defeats despite recent setbacks, contributing to sustaining the Revolutionary cause during a critical period.
The American Revolutionary War (1775–1783) grew from colonial resistance to British taxation without parliamentary representation — a dispute that radicalized through the Stamp Act (1765), the Townshend Acts (1767), and the Boston Massacre (1770). Fighting began at Lexington and Concord in April 1775; the Continental Congress declared independence on July 4, 1776. The Continental Army under George Washington faced severe shortages of supplies and troops, enduring the brutal winter at Valley Forge (1777–1778) before French alliance and French financing turned the military balance. Major engagements included Bunker Hill (1775), Trenton (1776), Saratoga (1777) — which secured French intervention — and Yorktown (1781), where British General Cornwallis surrendered to Washington. An estimated 25,000 American soldiers died in service, from combat, disease, and captivity. The Treaty of Paris (1783) recognized American independence and ceded British territory east of the Mississippi, though it left unresolved questions about Indigenous land rights and the status of Loyalists.
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