Since this is a NATO base, there are many nations with forces here, and so there is a panapoly of costume seen at meals. There’s the US Army, of course, in their all-season digital sage green fatigues. The US Air Force wears a slightly different pattern, a digital tiger-stripe with some bluish cast. The US Navy wears the older three-color desert pattern; this is also worn by the Dutch and the Hungarians. The US Marines are in their desert digital cammies. All the British forces are in the same pattern, a two-color dust-and-caramel brushstroke affair. The French have distinctive big brown stripes on an overall green pattern. The Germans have a brown-and-green digital speckle on a dust background, and the Danes use that same uniform too. The Canadian digital pattern is very similar to the USMC, except a shade lighter; of course their big red maple leaf is easy to spot. The Aussies are in spots. The belgians are in a lovely two-tone gold tiger stripe; a very subtle pattern. We also have Slovacks, Bulgarians, and UAE. I’m sure I’ve missed someone, but I think you get the picture.
That’s if they’re even in uniform; there’s quite a lot of going-about in PT uniform (service T-shirt and shorts). It’s common to see the PT uniform-plus-sidearm configuration as well. Only the US Army and US Air Force use this ensemble; the American sailors and Marines, not to mention the Brits and rest of the Euros, don’t.