Answer: The U.S. Government lent some diplomatic support, but Britain and France had territories in West Africa and were better poised to act. As a result, in 1847, Liberia declared independence from the American Colonization Society in order to establish a sovereign state and create its own laws governing commerce.
Independence was granted by the US in 1847. Liberia helped to aid Britain in its efforts to end the illegal West African slave trade. The official U.S. diplomatic recognition came in 1862.