U.S. Coast Guard Rear Adm. Wayne R. Arguin, incoming commanding officer of Oceania District and Rear Adm. Sean Regan, outgoing commanding officer of Oceania District shake hands with Vice Adm. Joseph Buzzella, commander of Coast Guard Pacific Area and Defense Force West on Coast Guard Base Honolulu, Hawaii, June 29, 2026. Arguin assumed the responsibilities of commanding officer from Regan following his tour at Oceania District from 2024 to 2026. (U.S. Coast Guard photo by Petty Officer 3rd Class Jennifer Nilson)