The 4th Security Force Assistance Brigade (4th SFAB) is a Security Force Assistance Brigade of the United States Army.

It is based in Fort Carson, Colorado, under the Security Force Assistance Command.

[3][4] According to the United States Army, Security Force Assistance Brigades are the dedicated conventional organisations for conducting security force assistance around the world.

[5] Each Security Force Assistance Brigade consists of about 800 senior and non-commissioned officers.

[7] 4th SFAB had up to 20 Advisor Teams at EUCOM, but the total fluctuates as teams roll on and off their missions; at any given time one third of the SFAB is resetting, one third is in unit training, and one third is on-mission at EUCOM.