2026 Comprehensive Common Inspection Practice Test

Think about the line of officers who have led the Marine Corps and where each person sits in that sequence. John A. Lejeune led the Marine Corps from 1920 to 1929, placing him as the 13th Commandant in the official lineage. His era is noted for post–World War I modernization and a push toward stronger professional training and readiness, which helps solidify his place as a landmark in the Corps’ history. The others listed served in earlier generations—Samuel Nicholas is recognized as the first Commandant, Archibald Henderson was the long-serving fifth Commandant, and William Ward Burrows was part of an earlier era—so they are not the 13th. Thus, John A. Lejeune is the 13th Commandant.