The planes flying over Korea are already forward based in Japan and have reached Initial Operating Capability, they were taking part in a show of force with F-15s and B-1s. It was literally doing operational tasking.
https://www.google.co.uk/amp/www.popularmechanics.com/military/aviation/news/amp28034/b-1-f-35-north-korea/
Biting the hand that feeds IT
