I've seen them at air shows, in the summertime. Now is not the summertime. Could be flying to Europe via Canada, Greenland, Iceland. then Germany perhaps. The Northern Route. That way they can have fresh fighter escort for the entire trip. The B-52 can fly that far, but it also flies slowly. That would take a long time. They can sleep onboard in shifts. Fighter planes can be refueled on route, but fighter pilots have an endurance limit. The other question is, what do they need a fighter escort for? Not like Canada is going to shoot it down. Nobody else is within range. Unless there are divided loyalties in the military - a distinct possibility during a coup d'etat.