Report of research accomplished to aid U.S. Army Infantry School in its systems engineering of Infantry Officers Advanced Course curriculum is given. Focus is on identification of knowledge and skills and study of thought processing of battalion commander and his four principal staff officers. Survey of these officer activities was conducted in over 80% of all combat maneuver battalions, and data produced by a simulated battalion CPX were analyzed. It was concluded that it is feasible to identify knowledge and skills for commanders and staff officers by conducting systematic job analysis, to use this information in systems engineering of a curriculum, and to initially investigate thought processing by using a CPX. In latter case definitive results should be developed by further experimentation. (Author/NF)