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Welcome to MCL 1155

Semper Fidelis

About Us

Members of the Marine Corps League join together in camaraderie and fellowship for the purpose of preserving the traditions and promoting the interests of the United States Marine Corps, banding together those who are now serving in the United States Marine Corps and those who have been honorably discharged from that service that they may effectively promote the ideals of American freedom and democracy, voluntarily aiding and rendering assistance to all Marines, FMF Corpsmen and to their widows and orphans; and to perpetuate the history of the United States Marine Corps and by fitting acts to observe the anniversaries of historical occasions of particular interest to Marines.

The Marine Corps League was founded in 1923 by World War I Veteran of Belleau Wood, Commandant of the Marine Corps, then Major General John A. Lejeune. On August 4, 1937, the U.S. Congress Congressionally Chartered the organization as a Veteran Service Organization. It maintains a 501c4 non-profit status with the Internal Revenue Service with special tax exemption.

We are Marines


“Once a Marine, always a Marine” is familiar to us all. It is that feeling you get when you see a Marine Corps sticker on a car or a home proudly displaying the Marine Corps flag. All we need to do is knock and that Marine will be there for you. It is not just a tag line for a commercial. That flag is the embodiment of our soul. Despite our many years of service to different causes and in various times, we all have that one tangible thing in common: It is the knowledge that we have all earned the privilege to wear the Eagle, Globe, and Anchor; a symbol that will forever be seared into our hearts.

Active, reserve, retired, and veteran Marines continue the faithful tradition of looking out for the Marines to their left and right. Providing mentorship, career counseling, Veteran Service Officer VA support, assisting with transitions, and providing opportunities for family. Founded by MajGen John Lejeune in 1923; for over 100 years we continue to stand proud as a veteran’s service organization.

What We Do

01

Color Guard

Honor Guard

02

Toys for Tots

03

Veteran Support

04

Community Support

(925) 338-1775

Meeting Address: 757 First Street, Brentwood, CA 94513

Mailing Address: 709 Seminole Court, Discovery Bay, CA 94505

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©2026 by Delta Diablo Detachment 1155 Marine Corps League.

The Eagle, Globe and Anchor emblem and the name Marine Corps® are registered trademarks of the USMC.  The Marine Corps League supports the USMC and its veterans; however, it is not officially connected to or endorsed by the USMC, and the name and emblem are used with permission.

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