USO World Headquarters [visit web site] The USO makes sure your help goes to those who need it the most: troops serving in combat, their families, our wounded warriors and their families, and families of the fallen. As a nonprofit, non-political organization, the USO is now, and always will be, about our troops. Wherever and whenever they go, the USO will be there, until every one comes home. Support the USO by donating an unwanted vehicle.