Barbary pirates, British and French captains captured American sailors on the high seas and made them virtual slaves on their ships. British actions on the frontier, especially in the Northwest Territory where they encouraged Indians to stay on the land to hold settlers in check, threatened America's westward development. The U.S. Congress declared war in June 1812. The British stretched its military and financial capabilities but eventually lost the war ("American History: The 19th Century, The Barbary Wars and War of 1812 (1812-15)"; Schneid,
Barbary pirates, British and French captains captured American sailors on the high seas and made them virtual slaves on their ships. British actions on the frontier, especially in the Northwest Territory where they encouraged Indians to stay on the land to hold settlers in check, threatened America's westward development. The U.S. Congress declared war in June 1812. The British stretched its military and financial capabilities but eventually lost the war ("American History: The 19th Century, The Barbary Wars and War of 1812 (1812-15)"; Schneid,