155th Infantry Regiment (United States)
| 155th Infantry Regiment | |
|---|---|
Coat of arms
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| Active | 1799–present |
| Country |
 United States
|
| Branch |
 United States Army
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| Nickname(s) | Mississippi Rifles (Special Designation) |
| Motto(s) | Stand Fast |
| Engagements |
War of 1812 Mexican–American War Civil War Spanish–American War Punitive Expedition World War I World War II Bosnia Iraq Campaign |
| Commanders | |
| Notable commanders |
Andrew Jackson Jefferson Davis Jeffrey P. Van |
| Insignia | |
| Distinctive unit insignia |  |
| U.S. Infantry Regiments | |
|---|---|
| Previous | Next |
| 154th Infantry Regiment | 156th Infantry Regiment |
The "Mississippi Rifles" or the 155th Infantry Regiment, is Mississippi's oldest National Guard unit. Its history predates statehood, back to June 1799, and it is the seventh oldest infantry regiment in the United States Army. They patrolled the frontiers of the Mississippi Territory, captured Aaron Burr, defended Fort Mims during the Indian Wars, and served under General Andrew Jackson in the Battle of New Orleans in the War of 1812.
The 155th Infantry is one of only nineteen Army National Guard units with campaign credit for the War of 1812, and the only one from a state west of the Appalachians. It has credit for the Florida (1814) and New Orleans Campaigns.
They were known as the "Mississippi Rifles" under the command of Colonel Jefferson Davis in the war with Mexico. They acquired this nickname because the regiment was the first in American history to have an official issue rifled musket (M1841 Mississippi Rifle) instead of a smoothbore musket. It was at the Battle of Buena Vista when other American units began to be overrun by the Mexicans that Col. Davis gave the order, "Stand fast, Mississippians!" The regiment stood their ground and the battle was eventually won. Davis' order later became the regimental motto.
Instead of the standard US Army uniform, the regiment was outfitted in red shirts, white duck trousers, and black slouch hats. The unit was instrumental in capturing Monterrey, and mustered for service in the Spanish–American War.
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