Sparthage
Fighting Tyranny
That looks like a city that has had everything added in the editor.

That looks like a city that has had everything added in the editor.
It's probably a mod, and he just edited himself to start with Space Flight, and gave himself an SGL to rush the Apollo Program with. I can't think of any other reason to have cities that underdeveloped, or any other reason there are a bunch of unfortified Regular Defensive units sitting in all of his cities. It would also explain the city names, which are indicative of either being pre-placed or an extremely absurd settling pattern, due to the order of the American city list.
I'd never seen an AI civ refuse a city before. I think it happened twice in this game (same tribe).
Strangely enough, they attacked me two or three turns later, so I really can't imagine why they refused it.