Ours or theirs? Foreign military aircraft based in the U.S. are
required to have U.S. markings.

I can remember a German F-104 flown by a civilian Lockheed pilot at MCAS El
Toro. It came down from Burbank and was painted with a green preservative
paint to somewhat cover the marking, but they were visible up close. It was
there for testing a hook system and were using the field arresting gear.

Leanne