Petty Officer 1st Class Derek Williams, a health services technician, demonstrates proper techniques to assist a choking victim to Coast Guard Auxiliarist George Sumner during CPR, AED and basic first aid training at Coast Guard Station Honolulu, March 13, 2015. Coast Guard crew members conduct first responder training to ensure proficiency in emergency situations. (U.S. Coast Guard photo by Petty Officer 2nd Class Tara Molle)