USCIS's outposts have traditionally been houses in U.S. embassies around the world, and have assisted Americans looking to adopt children overseas; Americans seeking to obtain immigrant visas for their immediate relatives, such as spouses, children and parents; process various travel documents for permanent residents who may have lost their documents, and naturalization applications for members of the U.S. military stationed abroad, along with providing technical expertise as needed to other U.S. governmental agencies.