Osprey's Campaign title for the battle that marked Major General Arthur St. Clair's downfall in the Northwest Indian War (1785-1795). In 1791, the US Army conducted its first important operation. St. Clair led an American army of about 2,000 into what now is Ohio. On 4 November 1791, the campaign ended in what was, in proportion to the size of the US Army at the time, by far the greatest disaster in American military history. At the battle of the Wabash, also known as St. Clair's Defeat, more Americans died than in any prior battle, more than would fall on any field prior to the Civil War. In the tactical masterpiece of their military history, an Indian army destroyed a force that was larger, encamped on high ground, supported by artillery, and led by many of the best American officers of the Revolutionary War. This highly illustrated and detailed title illuminates all aspects of this historic campaign.