APRA HARBOR, Guam (Jan. 12, 2023) Hull Maintenance Technician 3rd Class Jordan Butcher teaches a student from Cmdr. William C. McCool Middle School about the proper usage of a self-contained breathing apparatus during a tour aboard the submarine tender USS Emory S. Land (AS 39), Jan. 12. Emory S. Land is tasked to provide expeditionary intermediate level maintenance and repairs, as well as provide hotel services and logistics support to deployed guided-missile and fast-attack submarines. (U.S. Navy photo by Mass Communication Specialist 1st Class Joshua M. Tolbert)