USCGC Glen Harris (WPC 1144) and USCGC Emlen Tunnell (WPC 1145) trail USCGC Thetis (WMC 910) Purto Rico, Dec. 11, 2021. The Thetis is escorting the Sentinel-class cutters across the Atlantic as they are Tunnell and USCGC Glen are en route to their new homeport in Manama, Bahrain. (U.S. Coast Guard photo by Petty Officer 3rd Class John Hightower)