This was probably a test flight to see what came up.

Potus was probably taking a break to plan the fall of Europe.

Is Trump going to waiting for the Temple builders to crawl out of their caves in Switzerland to meet him?

Trump may have to drop some MOABS to make them surface.

They seldom rise to the surface, my Uncle fought them in the underground with his Gurkha troops in WW2 for 6 weeks and then the Vatican Fell.