Marines


Unit Deployment Program 25.1

Unit Logo - 23rd Marine Regiment
2nd Battalion, 23rd Marine Regiment
4th Marine Division

ABOUT 

To reduce the number of unaccompanied tours and improve unit continuity, the Commandant of the Marine Corps (CMC) established UDP to provide for the deployment of units to the Western Pacific (WESTPAC) for periods of approximately six months. The initial program was a six-phased evolution that sequenced infantry battalions and aircraft squadrons/detachments into WESTPAC deployments, thus eliminating the 12-month permanent change of station assignments for personnel assigned to these units.

 

 



news  /  PHOTOS  /  VIDEOS
U.S. Marine Corps Cpl. Issac Hurst, a mortarman with 2nd Battalion, 23rd Marines forward deployed with 4th Marine Regiment, 3d Marine Division as part of the Unit Deployment Program, conducts room clearings during a live fire shoothouse as a part of military operations in urban terrain training during Korea Viper 25.4 at Camp Rodriguez, South Korea, May 24, 2025. Korea Viper is a recurring exercise series that demonstrates the Republic of Korea and U.S. Marine Corps' ability to respond decisively in the region as a singular, unified force while strengthening relationships and trust between the two allies. Hurst is a native of Missouri. (U.S. Marine Corps photo by Lance Cpl. Tucker Mocan)
UDP 25.1 PHOTO GALLERY
Matlab Hurricane Decision Simulator
NEW ORLEANS - Aaron Miller, (left) deputy director of the Office of Homeland Security and Emergency Preparedness, listens to questions posed by Lt. Gen. Richard P. Mills, commander of Marine Forces Reserve and Marine Forces North during the Matlab Hurricane Decision Simulator presentation, June 11, 2015, at Marine Corps Support Facility New Orleans. The project also delivers a web-based version of the hurricane decision simulator. This version will enable several members of the MFR staff to use the program and possibly incorporate it in annual staff training. (U.S. Marine Corps Photo by Cpl. J. Gage Karwick/Released)

NEWS AND PRESS RELEASES


PRESS RELEASE: Marine Reserve Battalion Prepares for Deployment to Okinawa, Japan
https://www.marforres.marines.mil/News-Photos/MARFORRES-News/Article/4114762/press-release-marine-reserve-battalion-prepares-for-deployment-to-okinawa-japan/


A corpsman’s heroic actions save the life of a Marine before an upcoming deployment
https://www.marforres.marines.mil/News-Photos/MARFORRES-News/Article/4035917/a-corpsmans-heroic-actions-save-the-life-of-a-marine-before-an-upcoming-deploym/


PRESS RELEASE:  Fox Company, 2nd Battalion, 23rd Marine Regiment Leaves for Six-Month Deploymenthttps://www.marforres.marines.mil/news-photos/marforres-news/article/4016149/press-release-fox-company-2nd-battalion-23rd-marine-regiment-leaves-for-six-mon/


Valley Springs Firefighter Deploys with the Marines
https://new.thepinetree.net/?p=187361