The Battle of Arkansas Post, also known as the Colbert Raid or Colbert Incident, was a battle of the American Revolutionary War fought at Arkansas Post on April 17, 1783. It was a part of a series of small engagements fought between Spanish and British forces in the Lower Mississippi region from 1779, when Spain entered the war on the side of the United States, to the war's end. The battle consisted of an attack on the Spanish-controlled post by Loyalist irregulars led by James Colbert.