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
Marines with Force Headquarters Group attend DEF CON 31, an annual hacker convention in Las Vegas, Nevada
U.S. Marine Corps SSgt. David Osborne, a cyberspace operations officer, left, and Sgt. Justin Bryant a cyberspace warfare operator with Defensive Cyberspace Operations, Force Headquarters Group, Marine Forces Reserve help a civilian with a computer network analysis hacking game called “Packet Inspector” at DEF CON 31, Las Vegas, Nevada, Aug. 11, 2023. The Marines from FHG volunteered at the Caesars Forum in the “Packet Hacking Village”, a conference room turned computer hacking zone, to provide support to people from all skill levels about the importance internet safety procedures and practices. DEF CON helps identify opportunities to join and participate in think tanks, research organizations, interagency and industry sectors pertinent to DCO-IDM and Marine Forces Reserve. DCO-IDM and MARFORRES offer rare and valuable skills and experience found in a growing number of Reservists who work in cyber roles among hundreds of civilian employers. (U.S. Marine Corps photo by Cpl. Jonathan L. Gonzalez)

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Photo by: CPL. Jonathan L. Gonzalez |  VIRIN: 230811-M-MW005-2034.JPG
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