Sam Nunn is an American politician and former U.S. Senator from Georgia. He served in the Senate from 1972 to 1997, representing the Democratic Party. Nunn was known for his work on national security and defense issues, particularly during the Cold War. He played a significant role in shaping U.S. military policy and was influential in arms control negotiations. After leaving the Senate, Nunn co-founded the Nunn-Lugar Cooperative Threat Reduction Program, which aimed to secure and dismantle weapons of mass destruction in former Soviet states. He has continued to be active in public policy and international security discussions through various organizations and initiatives.