Ashton Carter (Ex-Defense Secretary)

Ashton Carter is an American physicist and politician who served as the U.S. Secretary of Defense from 2015 to 2017 under President Barack Obama. He played a key role in defense policy, focusing on issues like the fight against ISIS and military readiness. Before his tenure as Secretary, he held various positions in the Pentagon, including Deputy Secretary of Defense. Known for his expertise in technology and national security, Carter has emphasized the importance of innovation in the military and worked to strengthen international alliances. After leaving office, he has contributed to academia and policy discussions on defense.