July 7, 2013

Marine Corps Test Unit 1

While Marine Recon got its start in World War II, with the Raiders and the 1st Marine Division’s Amphibious Reconnaissance Company, much of what Recon is today is thanks to Marine Test Unit 1.

After the nuclear bombing of Hiroshima and Nagasaki, most of the US military started trying to shift their doctrine to a model of a nuclear battlefield.  At the time, it was assumed that nuclear weapons would become an integral part of warfare, much like gas had in WWI.  As a result of this shift in doctrine, the services started looking at how to operate in a nuclear environment.

In 1946, Col. Robert Cushman (later to become Commandant of the Marine Corps) authored a staff report to the Commandant, Gen. Vandegrift.  In this report, Col. Cushman argued that the kind of mass amphibious landings of WWII were no longer viable on the nuclear battlefield–the massed amphibious formations moving into a relatively small beachhead would be easy targets for tactical nuclear weapons.  He presented the idea that the Marine Corps had to broaden its focus to a dispersed area of operations up to 200 miles deep, spreading its units around so as to make smaller and harder to hit targets.  In this way, a single nuke couldn’t take out the better part of a Marine Division.

At the time, Col. Cushman’s concepts for increased mobility and dispersion weren’t within the Marine Corps’ capabilities.  It wasn’t until the helicopter operations in Korea in 1951 that it began to look like it was possible.

or Log In

About the Author

is a former Reconnaissance Marine and veteran of Iraq and Afghanistan. He deployed to Iraq in 2005-2006, and again in 2007, with 1st Platoon, Bravo Company, 1st Recon Bn. After two years of schools and workups, including Scout/Sniper Basic and Team Leader's Courses, he deployed to Afghanistan with 4th Platoon, Force Reconnaissance Company, I MEF. He is now a tactical tracking instructor and the author of the military thrillers Task Force Desperate and Hunting in the Shadows.

To comment on this article please join/login. Here's a sample of the comments on this post.


    Didn't they also help develop the submarine lockout?

  • PvibeCpl

    Rank structure was changed in 1960, prior to that there were 7 enlisted grades, No lance corporal. I knew a Marine that was in Test Unit #1. They took part in A-Bomb testing at Mercury Nv.

  • dickftr

    Good story Pete, my jarhead Dad is gonna really enjoy reading this.

  • PONI

    Good write up. Semper Fi, Marines.

  • PONI

    Good write up. Semper Fi, Marines.