Lieutenant Cmdr. Forrest Kroschel (Front) and Lt. Cmdr. Stewart Powers (Back), both dentists with 4th Dental Battalion, 4th Marine Logistics Group, work together to care for a patient at the mobile site June 19, during Innovative Readiness Training exercise Tropic Care 2014, Kauai , Hawaii. The mobile site is an off -branch of the three main sites that patients can be seen for medical, dental and optometry care provided by the Department of Defense at no cost to the public, providing simultaneous military training for medical personnel. TC14 also allows service members from each branch to combine their expertise in a joint-training environment.