Mother Courage’s explanation of the war is self-serving: she blames the victims for being invaded. Presumably, she does this because it helps her justify her job feeding (and profiting from) the invaders. The Cook and Chaplain’s claims about their religious obligations serve exactly the same purpose. They’re also Brecht’s warning about the Nazis, who used religion to justify their violence and conquest in much the same way. Nevertheless, Mother Courage’s final comment about the King’s real motives—self-interest and profit—shows that, even if she blames the victims for the invasion, she is still the only character who understands the invasion’s real purpose. For all her faults, then, in a way, she’s actually the most honest character in the play.