In 2017, the U.S. Army established Security Force Assistance Brigades (SFABs) to organize, train, equip, and advise foreign security forces. Tom Spahr spoke with two former SFAB commanders, Dustin Blair and Jon Post, to discuss the development of these brigades, their role in great power competition, and their potential use in future large-scale combat operations. Blair and Post emphasized the importance of SFABs in building relationships with partner nations and enhancing interoperability. They also stressed the need for continued investment to ensure the SFABs' long-term success.