The 257th Military Police Company (257th MP) is a Minnesota National Guard company based in Monticello. Soldiers in the 257th MP Co. are trained to perform a variety of tasks during both peacetime and war. The 257th MP Co. is capable of supporting the US Army with a trained and ready combat force and is prepared to support the State of Minnesota with troops capable of assisting civil authorities.
The 257th Military Police Company deployed in 1990 in support of Operation Desert Shield/Desert Storm.
The 257th Military Police Company deployed to Iraq in 2004 as D Battery, 216th Air Defense Artillery and to Afghanistan in 2012 where they were responsible for coaching, teaching and mentoring members of the Afghan National Army.
In 2017, the 257th Military Police Company deployed to Naval Station Guantanamo Bay in support of Joint Task Force Guantanamo.