Caroline Kennedy, U.S. Ambassador for Australia, and U.S. Coast Guard Capt. Keith Ropella, commanding officer, shake hands after a tour of the U.S. Coast Guard Cutter Polar Star (WAGB 10) in Hobart, Australia, Dec. 16, 2023. Operation Deep Freeze is one of many operations in the Indo-Pacific in which the U.S. military promotes security and stability across the region. (U.S. Coast Guard photo by Petty Officer 3rd Class Ryan Graves)