Caroline Kennedy, U.S. Ambassador for Australia, crosses the brow of the U.S. Coast Guard Cutter Polar Star (WAGB 10) in Hobart, Australia, Dec. 16, 2023. The U.S. Coast Guard Cutter Polar Star is en route to Antarctica in support of Operation Deep Freeze, a joint service, inter-agency support operation for the National Science Foundation, which manages the United States Antarctic Program. (U.S. Coast Guard photo by Petty Officer 3rd Class Ryan Graves)