Captain America Comics #49

In the waning days of WWII Hitler becomes desperate to ensure a soft peace for Germany in order to gain time to build up for the next war so he recruits German troops who look like dead Americans and deliberately has them maimed and left near American lines. The men are sent home to become a fifth column preaching race hatred, down with democracy, and a soft peace. After Cap defeats the cripples, he gives a speech against such evils.