So, let's examine some facts about the Charr:
1) Only known race to use a weapon of mass destruction to annihilate an enemy city (Searing).
2) Fought a civil war against a racist faction.
3) Currently possess the most powerful military in Tyria (and don't say the Pact, because not only does much of the Pact's power come from the Charr and Charr devices, but it's also an international force composed of an amalgam of countries, basically Tyria's UN).
4) Seen as rude, nationalistic, or arrogant by other races, who are often wary of their warlike nature.
5) Not opposed to stationing military forces in foreign countries for their protection (recent LS).
6) Obsessed with meat.
7) Invented automobiles and flying machines.
8) Rampant pollution and disregard for the environment.
9) Separation of Church and State (heh heh cuz Flame Legion heh)
10) Guns, guns everywhere, guns for everyone.
CONCLUSION: Charr are American. SECONDARY CONCLUSION: Mordremoth is about to receive some freedom.