A peacekeeping organisation? I'm afraid I'm not really familiar with organisations like that. What sort of things did you do?

[It's just that... peacekeeping can be one of those weasel words, can't it? Armin is sure his own government would've described the mission to retake the wall using refugees as a peacekeeping mission. Or killing Eren without even investigating what his new powers could do. And he hardly knows this man. It's not like he can immediately trust his word that it was indeed super peaceful.]