The New York and New Jersey campaign was a series of battles for control of New York City and the state of New Jersey in the American Revolutionary War between British forces under General Sir William Howe and the Continental Army under General George Washington in 1776 and the winter months of 1777. Howe was successful in driving Washington out of New York City, but overextended his reach into New Jersey, and ended the active campaign season in January 1777 with only a few outposts near the city. The British held New York harbor for the rest of the war, using it as a base for expeditions against other targets.