Some of the Continental Army's most important campaigns were fought in this department. These included the New York campaign and the New Jersey campaign which ended with the battles of Trenton and Princeton. The Philadelphia campaign was fought in this department, after which the Continental Army went into winter quarters at Valley Forge. In 1778 this department was the scene of the Monmouth campaign. After Monmouth, on June 28, 1778, major military operations in the United States shifted to the Southern Department. The department existed until the close of the war. It was the scene of one of the war's last episodes when the British Army evacuated New York City on November 25, 1783.