(For the modern micronation, see Dominion of British West Florida.) British West Florida was a colony of the Kingdom of Great Britain from 1763 until 1783, when it was ceded to Spain as part of the Peace of Paris. British West Florida comprised parts of the modern U.S. states of Louisiana, Mississippi, Alabama and Florida. Effective British control ended in 1781 when Spain captured Pensacola. The territory subsequently became a colony of Spain, parts of which were gradually annexed piecemeal by the United States beginning in 1810.