The Second World War provided a host of challenges for America's strategic leaders. It can be argued that their most critical challenge was choosing the right operational artists and theater-strategists for the Allied cause. Strategic leaders needed the right operational artists to lead forces in a global, combined, joint fight that spanned four theaters of war and fifteen theaters of operations. Of the national-strategic leaders involved in the selection of theater and operational commanders, General of the Army George C. Marshall stands out. Global war dwarfed military endeavors of the past, requiring an unprecedented number of theater strategists and operational artists. The United States had no formal method to pick these leaders, relying on the professional judgment of men like General Marshall. To fulfill this role he followed the guidance and example of his predecessors; he relied on his experience, preference, and education to select the right operational leaders, then supported them fully. Operational artists and theater-strategists, like Dwight D. Eisenhower, were chosen because they possessed traits Marshall valued, and those traits remain relevant for study and application today.