[Alneyan]

Well, I wouldn't say the US are Ulm, really. Caelum seems a much better fit: they have flying hit squadrons and long-ranged fun (instead of crawling on the ground, they are quite wealthy and have an easier time building up their forces, they have some nasty firepower under their belt, and many players feel they are overpowered, leading to a "gang on them" approach.