Who was the 4th Commandant of the Marine Corps?

The 4th Commandant of the Marine Corps was Anthony Gale, who served from 1820 to 1821. His leadership came during a formative period for the Corps when it was establishing its identity and role within the U.S. military. Gale's tenure was marked by efforts to standardize training and organization, helping to lay the groundwork for the Marine Corps' development.

In contrast, Jacob Zeilen was the 5th Commandant and played a significant role in reorganizing the Corps after the Civil War. John A. Lejeune, on the other hand, is often celebrated as one of the most influential Commandants, known for his leadership during World War I and his efforts to enhance the professional image of the Marine Corps. General G. C. Thomas served as the 18th Commandant, contributing to the Corps during the early 20th century. Each of these leaders made significant contributions during their respective periods, but Anthony Gale is distinctly recognized as the 4th Commandant.