The U.S. State Department, more decisively than at any time since V-E day, showed its realization that the U.S. must show a strong hand or lose its leadership in the postwar world.

In notes sent last week to Soviet Russia and two of its European satellites it warned that it was tired of Communist monkey business with the peace of Europe and that its patience would stand for just so much. Within three days the U.S.:

¶ Sent an ultimatum to Marshal Tito's Yugoslavia demanding redress and satisfaction over the capture and...

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