1st Provisional Marine Brigade
The 1st Provisional Marine Brigade was sent to Masan immediately. They were sent to the westernmost flank of The Pusan Perimeter. The Eighth Army set the place up to resist the North Korean Army which was trying to overwhelm United Nation Forces. The 1st PMB joined the 5th Regimental Combat Team and 25th Infantry Division, they were under Major General William B. Kean. The three units banded together and made "Task Force Kean" and had about 20,000 men.