Battle of Staten Island

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The Battle of Staten Island was a failed raid by Continental Army troops under Major General John Sullivan against British forces on Staten Island on August 22, 1777, during the American Revolutionary War. After British Lieutenant General William Howe sailed with most of his army from New York City in July, Sullivan recognized that the British position on Staten Island was vulnerable, and planned an attack. He carried it out in spite of commanding general George Washington's request that Sullivan reinforce the main army with his troops as soon as possible to support Washington's planned Colonial assault on British-held Philadelphia.

Among its flaws the raid suffered from a shortage of boats to effect its retreat, costing it two companies, and one of its detachments was misled by its guide to the front of the British position rather than its rear. As a result, American losses of dead, wounded, and captured were each double or more those of the British, depriving Washington of some 180-300 men needed for his campaign. Although Sullivan was accused of mismanaging the raid, a generous court martial held later in 1777 exonerated him of all charges.