On September 26, 1777, British General William Howe's forces occupied Philadelphia. An excerpt from the article:
"On September 26, 1777, the British army marched into Philadelphia, beginning an occupation that lasted until the following spring. Its arrival led patriots to flee and Loyalists to rejoice, although wartime shortages soon led to suffering for those who remained in the city. The occupation, however, led to no concrete gains, and the British abandoned the city the following June.
The occupation of Philadelphia deviated from a British plan to conquer New England in 1777, after two years of inconclusive war. To conquer New England, the British intended to send two armies into New York state. The first, headed by General John Burgoyne (1722-92), proceeded south from Canada. At the same time, forces led by General William Howe (1729-1814) would have headed north from New York City along the Hudson River. These two armies would have divided New England from the other colonies, allowing the British to invade and conquer.
Howe, to the surprise of his superiors, did not follow through on this plan. Whether from personal dislike of Burgoyne, fear of allowing General George Washington (1732-99) time to rebuild his army, or doubts about his own ability to prosecute the Hudson River campaign, he rejected the plan. Instead, with a force of about fifteen thousand English and German soldiers, he sailed south along the coast and then headed up the Chesapeake Bay toward Philadelphia. In August 1777, he landed at Head of Elk, some fifty miles from the city."