Stalin
Churchill
Roosevelt
The Common Struggle Against Fascism

Message from Winston Churchill to Joseph Stalin on the plans of German military commanders for shifting troops to the east

19 April 1941
Russian State Archive of Social and Political History

Russian translation.

English original.

"I have sure information from a trusted agent that when Germans thought they had got Yugoslavia in the net, that is to say after March 20th, they began to move three out of five Panzer divisions from Roumania to Southern Poland. The moment they heard of Serbian revolution this movement was countermanded. Your Excellency will readily appreciate the significance of these facts."