James Monroe (1758-1831) was appointed Secretary of State by President James Madison in 1811. He remained in this position until March, 1817, with the exception of the period from October 1, 1814, to February 28, 1815, when he was ad interim Secretary of State. Monroe encouraged President James Madison and Congress to declare war on Great Britain, feeling it would be the most effective way to change offensive British policies. The United States declared war on June 17, 1812, after which he served as Secretary of War. Monroe later became President of the United States from 1817 until 1824.A letter of marque addressed to Captain James Rogers, commander of the boat Retaliation, and signed by James Monroe, secretary of state. Letters of ma...