Trondheim is a critical battleground for both factions. Trondheim was the name of a planet in the Hundred Worlds of the Ender's Game book series. Trondheim has an international airport, Trondheim Airport, Værnes, situated in Stjørdal, which is Norway's fourth largest airport in terms of passenger traffic. Værnes has non-stop connections to cities such as London, Amsterdam, Copenhagen, Stockholm and Berlin, among others. The domestic route Trondheim - Oslo is among the busiest air routes in Europe with around 2 million passengers annually. Busiest air routes Major railway connections are the northbound Nordland Line, the eastbound Meråker Line to Åre and
Port of Grays Harbor been shipped. By the 2010s other industries had become more prominent, including imported and exported automobiles transported via roll-on/roll-off ships and a rental car reconditioning facility for cars destined to auction. It is the West Coast's largest automobile export port and the United States' closest deepwater port to Asia. At the time of its construction it was the only deepwater port on the Pacific north of San Francisco, and it remains Washington's only Pacific Coast (vice Puget Sound) deepwater port. The port is served directly by Puget Sound and Pacific Railroad, which connects to the BNSF Railway network, and by