The civilization is military based but that doesn't mean they are constantly wanting a war. Iron Legion has leagues of farms and craftsmen who are not front-line soldiers. Iron Legion sent a peace offering to humanity long before Kralkatorrik woke up. But most importantly, Charr aren't raging berserker idiots who can't understand the idea of peace. They are smart enough to know they cannot use the Asura gates to invade, and a land-based one would allow other nations time to prepare defenses. They spent some what, 200 years failing to breach and take Ebonhawke. Imagine doing that to a city on the other side of the shiverpeaks while trying to protect and maintain your supply lines. While Lion's Arch has a fleet of airships, as does the orders (which are almost entirely based in and on the border of Kryta). Imagine being the race who comes out of this united, combined effort to make the elder dragons stop being a risk to all life, and turning around and attacking the others for no reason at all. The Charr legions were present at Thunderhead Keep, as was every other functional army force. They would know to attack would make them the bad guys. And they would know they cannot defeat the rest of the world standing alone. Unlike the orcs of WoW, the Charr are written as actually having a culture and civilization. They are more then just soldiers. I'd be incredibly disappointed in Anet if they suddenly went "Oh yeah, the charr decide that with the elder dragons mostly dealt with, they want to invade and ravage across Kryta and the shiverpeaks!" because that'd turn the Charr from being the Charr high legions, to be the idiotic and blundering orc horde from warcraft. Not to mention, we have a blood legion warband helping the Seraph at Lake Doric fight the White Mantle (when the white mantle attacked). "The White Mantle can't be allowed to ruin everything our races have built together. This is our fight too. " https://wiki.guildwars2.com/wiki/Nylia_Steelpaw Big thing about this warband? It wasn't ordered by the tribunes. The leader of the warband VOLUNTEERED to go to Lake Doric and help. The blood legion, the most violent of the four and generally stereotyped as brute force front-line warriors, volunteered to go help defend the capital of Kryta against the White Mantle to preserve everything that Charr and Humanity had built together so far.