Mattis, Daniel C.

Daniel C. Mattis is a distinguished American military officer who served as the 26th U.S. Secretary of Defense from 2017 to 2019 under President Donald Trump. Before that, he was a four-star Marine Corps general, known for his expertise in military strategy and leadership. Mattis has also been a strategic thinker and author, emphasizing the importance of disciplined, well-prepared armed forces and ethical leadership. His career reflects a deep commitment to national security, stability, and the professional development of military personnel.