The Falklands
I was on the side of Aconcagua (the highest mountain in the Andes) at a base camp at 16,000 feet and there were 8 British soldiers there to climb it. This was in 2000, so the Argentines didn't seem to hold a grudge.
On the other hand, while decent folks, the Brits camped about 100 yards away from everyone else, near the pipe which fed water out of an area with warm rocks. They wouldn't come over to the authorized outhouses, but would wander over near the source of water and take their dumps.
I would have thrown them off the mountain, if it were me, but I was hiding from the Argentinian Rangers myself. And even if I weren't, there were 8 of 'em.