Quitting smoking is part of the transition from being in the military to being a civilian, from where you are to where you want to be. Smoking is no longer a part of most of people’s lives, whether at work, home, school, restaurants, or other public places. Only about 20% of American adults are smokers. Quitting smoking is one of the best things you can do for your physical health, emotional well-being, and quality of life.