The basic service unit of The Salvation Army is the corps community center. Some cities may have several centers. They provide a variety of local programs, ranging from religious services and evangelistic campaigns to family counseling, day-care centers, youth activities, and general programs. The religious and social services implement the Army's purpose of preaching the gospel to effect spiritual, moral, and physical reclamation. The corps community centers within defined geographical boundaries comprise a division, with more than 40 divisions in the United States responsible to their respective territorial headquarters. Specialized social work is conducted through adult rehabilitation centers within these divisional commands. The Salvation Army operates active men's fellowship clubs in many communities, providing a service program similar to those of the Rotary, Kiwanis, or Alliance clubs. Men meet for dinner meetings to plan community-service projects, special events, and weekend retreats. They enjoy fellowship, music, and speakers who present information on topics of interest. Whether a young person is just starting first grade or finishing their last year of college, The Salvation Army offers opportunities for them to grow in Christ, expand their worldview, volunteer their time, meet people, gain confidence and discover how they can impact the world.