The British commanders Howe and Howe sailed into New York harbor with 32,000 soldiers including many Hessians and won the battle of New York. Washington's army was outnumbered and untrained, and many deserted after the defeat. Washington then led his remaining troops across the Delaware River in harsh weather and surprised the Hessians in Trenton on Christmas night, killing or capturing over 900. Meanwhile, Burgoyne moved south with 4,000 men but became bogged down, and the Americans won at Saratoga. At Valley Forge, Washington's army suffered from the harsh conditions but trained under von Steuben. The British then shifted their efforts to the South, winning at Charleston, but were continually harassed until being surrounded