Why do you think American soldiers are shown as dogs? Explain

They are depicted as liberators. I suppose they reflect the friendly dog personalities they are depicted as. As soon as they come, the Jews know the war is over. The Americans are depicted as dogs. They are kind, giving Vladek and the others food and gifts. They good heartedly call Vladek "Willie."

Thanks

And Germans are drown as cats,so I think like the "dogs always catch cats" thing,with drowing Americans as dog,Art Spiegelman want to show us Americans catch Germans.