The strategy of the British in North America was to deploy a combination of operations aimed at capturing major cities and a blockade of the coast. The British took Long Island in August 1776 and captured New York City in September 1776 in combined operations involving the army and the navy during the New York and New Jersey campaign. In 1777 Howe provided support to his brother's operation to capture Philadelphia, ferrying General Howe's army to a landing point from which they successfully marched and took the city. Howe spent much of the remainder of the year concentrating on capturing Forts Mifflin and Mercer which controlled entry to the Delaware River without which ships could not reach Philadelphia. News of the capture of a separate British army under General John Burgoyne threw British plans into disarray. Howe spent the winter in Newport, Rhode Island.