 Active duty military personnel are at high risk of cigarette smoking. Despite strong efforts by the Department of Defense to reduce tobacco use, rates of smoking among people in the military remain high. The military lifestyle presents unique challenges to implementing smoking cessation programs, including the high mobility of troops, remote locations, and limited access to healthcare services. Because of these challenges, many smoking cessation programs that are effective in the non-military population are often ineffective in the military population. Tobacco telephone quit lines are telephone-based tobacco cessation services that provide easy access to educational materials, referrals to local programs, and individualized telephone counseling. Because tobacco quit lines are remotely based and can fit into varying schedules at convenient times, they may be effective among people in the military. Nicotine replacement patches are another effective smoking cessation tool and can be used in addition to telephone quit lines. The purpose of this study is to evaluate the effectiveness of tobacco quit lines, in addition to nicotine replacement patches, at improving smoking cessation rates among members of the Air Force. 