The Salvation Army USA is a comprehensive resource that provides various forms of assistance including shelter to homeless individuals across the United States. They offer a wide range of services such as emergency shelter, transitional living, and family shelters. The organization's goal is to meet the physical, emotional, and spiritual needs of homeless people, striving to provide both immediate relief and long-term support. Through their numerous programs, they aim to combat homelessness by addressing the root causes and helping individuals regain self-sufficiency.