page_title: List of United States military and volunteer units in the Mexican–American War
section_title: Mississippi
hierarchical_section_title: List of United States military and volunteer units in the Mexican–American War / Volunteer units serving in Mexico from 1846 to 1848 / Mississippi
caption_attribution_description: English: Jefferson Davis, c.1847
context_page_description: This is a list of United States military units that participated in the Mexican–American War. The list includes regular U.S. Army, Navy, Marine Corps, and Revenue Marine Service units and ships as well as the units of the militia that various states recruited for the war. The commanding officer of each unit or ship is identified when there are references with content that aids identification. Dates are included when they are available in the references.
context_section_description: 1st Regiment of Mississippi Rifles, volunteers for 12 months; June 1846 – June 1847.  Colonel Jefferson Davis (former 1st Lieutenant and Adjutant 1st. Dragoons; severe wound, at Buena Vista)
  2nd Regiment of Mississippi Volunteers, for the duration; received January 1847 – July 1848. Colonels: Reuben Davis (resigned October 1847); Charles Clark (Captain to 16 October 1847)
  1st Battalion of Mississippi Rifle Volunteers, for the duration, (5 companies); October and November 1847 – June 1848. Lt. Colonel James Patton Anderson
caption: Jefferson Davis, c. 1847
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