A U.S. military team searching for the remains of Americans listed as missing in the Vietnam War returned to Bangkok, Thailand, after two days of surveying warplane crash sites in Laos, a military spokesman said. The eight-man team was assisted by Laotian experts and focused on an area in eastern Laos near the Ho Chi Minh Trail, the main supply route for the North Vietnamese during the war. Maj. Thomas J. Boyd, spokesman for the U.S. Pacific Command, said the results will be used to plan excavations of crash sites. The United States is attempting to resolve the cases of 547 MIAs in Laos. A U.S.-Vietnamese team is carrying out a similar 10-day field investigation north of Hanoi.