Melissa Dalton

Melissa Dalton is Performing the Duties of Deputy Under Secretary of Defense for Policy. She was sworn in as the Assistant Secretary of Defense for Homeland Defense and Hemispheric Affairs on March 4, 2022. She is responsible for advising the Secretary of Defense and other senior defense leaders on defense continuity and mission assurance; homeland defense and defense support of civil authorities; Arctic and global resilience; and U.S. defense and security policy for Canada, Mexico, Central America, the Caribbean, and South America.