The Wartburg Castle became part of the territory of the New United States in 1632. Most contemporary military leaders were astonished that the Americans had not bothered to fortify the castle, save for Albrecht von Wallenstein, who realized that the Americans had some other reason for leaving it empty.
Spanish forces launched an attack on the NUS in July, 1632. They seized Wartburg Castle immediately, and attempted to invade nearby Eisenach. However, they were quickly crushed by superior American firepower and technology. The Americans deliberabtely redirected the Spanish back into the Wartburg, where they were subject to psychological warfare (including loud music from the 19th and 20th Centuries) and finally a napalm bombardment.