Petty Officer 3rd Class Xavier Bell (left), corpsman, Marine Air Control Group 38, 3rd Marine Aircraft Wing (Forward), provides tips on how to quit smoking to Cpl. Thomas Davidson (right), refrigeration mechanic, 1st Battalion, 11th Marine Regiment, 1st Marine Division, during the Great American Smokeout event on Camp Leatherneck, Afghanistan, Nov. 18. The medical staff from 1st Marine Logistics Group (Forward) provided medical support and information to service members interested in quitting the use of cigarettes and smokeless tobacco.