The U.S. Army's Command and General Staff School offers its Advanced Operations Course (AOC) for junior field-grade officers using both traditional resident instruction and a model referred to as blended distributed learning (BDL). The BDL course lasts 12
Susan G. Straus,Michael G. Shanley,Maria C. Lytell,et al. Enhancing Critical Thinking Skills for Army Leaders Using Blended-Learning Methods. 2013-01-01.