Has a Soviet or Russian Leader Ever Before Been Invited to Spy on a U.S. Military Installation?

Mind if I take a few photos Donald? Cheers!

I guess its a little worse than Trump touring it and telling Putin about it afterwards.

My guess is Putin's skills and observational prowess have declined, though, and it's the staff that should concern folks more.

He’s invited kim here and sucked up to him so thats no different. Who knows what kind of classified information he’s shared with him. Those minutes when it was just the two of them who knows what he told him.

Has a known KGB member ever been invited to one?

Trump has more important concerns. Like renaming the Kennedy center and making certain only MAGA Republicans get awards there. He's a busy man after naming 93% of the awarded selections.

Putin probably blackmailed him into it with the PP tape.