Building the branch home surface
Loading branch highlights, featured unit context, and gallery moments.
Building the branch home surface
Loading branch highlights, featured unit context, and gallery moments.
Building the branch units surface
Loading unit filters, rankings, and the branch unit grid.

37 members•1 unit
Relive and share the memories of your service-time with your brothers and sisters in arms today. VetFriends.com can help you reconnect.
Did you proudly serve in the 3rd Battalion 3rd Marines (Trinity) 3rd Mar DIv. MCBH K-Bay?
Are you looking for someone who is or was in the 3rd Battalion 3rd Marines (Trinity) 3rd Mar DIv. MCBH K-Bay?
Do you have 3rd Battalion 3rd Marines (Trinity) 3rd Mar DIv. MCBH K-Bay photos you'd like to share?
Then join a community with your brothers and sisters of the 3rd Battalion 3rd Marines (Trinity) 3rd Mar DIv. MCBH K-Bay.
Branch
U.S. Marine Corps
Members
37
The 3rd Battalion, 3rd Marines (3/3), nicknamed “Trinity,” is an infantry battalion of the United States Marine Corps based at Marine Corps Base Hawaii, Kaneohe Bay (MCBH K-Bay), and is part of the 3rd Marine Division. Activated in 1942 during World War II, 3/3 participated in major Pacific campaigns, including Bougainville and Guam. The battalion saw significant action in Vietnam, Iraq, and Afghanistan, earning a reputation for effectiveness in counterinsurgency and expeditionary operations. Today, 3/3 continues to serve as a forward-deployed, rapid-response force, maintaining readiness for missions throughout the Indo-Pacific region.

U.S. Marine Corps • 1999

U.S. Marine Corps • 1970