What does external migration mean? The definition of external migration is migrating, or moving, to a new home in a different state, country, or continent. This is a form of human migration. Birds migrate a â¦ t specific times of the year and travel to other states or countries as the seasons change.
Fort Lewis was originally established in 1917 with the passage of a Pierce County bond measure to purchase 70,000 acres (280 km2) of land to donate to the federal government for permanent use as a military installation. A portion of the initial land was taken from the Nisqually tribe's reservation.
Fort Lewis is a United States military facility located 9.1 miles (14.6 km) south-southwest of Tacoma, Washington, under the jurisdiction of the United States Army Joint Base Garrison, Joint Base LewisâMcChord.ray Army Airfield (IATA: GRF, ICAO: KGRF), is a military airport located within Fort Lewis. The field is named in honor of Captain Lawrence C. Gray, who lost his life during a free balloon flight at the field on 4 November 1927. It is used by Army helicopters.