How does the
cartoonist
justify his
Idecision to
appease Hitler?

Well, the cartoonist is actually critical of Hitler in the drawing. The cartoonist is satirizing the appeasing position that many people had with Hitler, perhaps out of fear, but most likely out of hidden sympathy that with time became more and more explicit until the point that many people came out as Nazi supporters in the end.

The cartoonist is bringing attention to the dangers of initial appeasing a tolerant position to totalitarian regimes like national socialism, because this attidues can easily turn into political affiliation.

the answer is c my brotha. c.   formed an alliance with the soviet union.

your answer is a hope this