The government of the United States set up the National Helium Reserve in 1925 at Amarillo, Texas, with the goal of supplying military airships in time of war and commercial airships in peacetime.
USAs regering oprettede i 1925 den såkaldte National Helium Reserve ved Amarillo i Texas, for at kunne forsyne militære luftskibe under krigstid, og deres civile, kommercielle modstykker i fredstid.