U.S. Coast Guard Petty Officer 1st Class Joshua Tangermann, a boatswain’s mate, fires a line gun during a mooring evolution on the Coast Guard Cutter Polar Star (WAGB 10) in McMurdo Station, Antarctica, Jan. 16, 2024. 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 2nd Class Ryan Graves)