Vyacheslav Molotov, the Foreign Policy Minister of the USSR, which was tied with Soviet–German non-aggression treaty, congratulated the Germans: "We hand over the most cordial congratulations by the Soviet government on the occasion of splendid success of German Wehrmacht. Guderian's tanks broke through to the sea near Abbeville, powered by Soviet fuel, the German bombs, that razed Rotterdam to the ground, were filled with Soviet pyroxylin, and bullet cases, which hit the British soldiers retreating from Dunkirk, were cast of Soviet cupronickel alloy..."