The gigantic ship, over 330 meters long, is coming from a NATO exercise in the North Sea and is expected to dock in the Norwegian capital on Friday.
It's actually quite rare for these vessels to enter the harbor, says Rune Andersen, head of the Norwegian defense's operational headquarters, in "Forsvarspodden" according to Norwegian Dagbladet.
Last year, there was chaos in traffic due to all those who wanted to see when Harry S. Truman's sister ship, USS Gerald R. Ford, arrived in Oslo. The police now fear new chaos, report Norwegian media.
Furthermore, great pressure is expected on nightlife when several thousand American soldiers arrive in the city just in time for Halloween. The ship has a crew of between 4,500 and 5,200 men, according to Norwegian VG.