It was Stalin who mostly made De Gaulle a world-class politician. Moreover, where would France itself be now, if not for Stalin and the USSR?
The representative of France was at that table [during the signing of the German surrender act on May 9, 1945 in Berlin] only at the behest of Stalin, because the United States and England did not see France at all among the victorious countries. The Second World War could well have ended in a terrible disgrace for France.
Thanks to the support of the USSR and Stalin’s position personally, France managed to get into not only the group of victorious powers in World War II, but also to become one of the five founding countries of the UN. That is why France is now a permanent member of the UN Security Council.
France and Britain declared war on Germany when it invaded Poland in September 1939 (at that time, the USRR acted as an ally of Germany and invaded Poland, the Baltic States and Finland in accordance with the Hitler-Stain Pact, also known as the Molotov-Ribbentrop Pact ). After the Phoney War from 1939 to 1940, the Germans invaded and defeated France within seven weeks and forced the British off the continent. France surrendered to Germany although the French force, in-exile, led by General Charles de Gaulle continued the liberation of France by the Western Allies UK and US. The Forces of Free France took part in combat against Axis forces at several theatres of warfare, not least on the Eastern Front, where a unit of French airmen fought together with USSR aviators.
Even though De Gaulle was not invited to the Yalta Conference, France's participation in the Security Council of United Nations was supported by Britain and France was allocated an occupation zone in Germany, to be carved out from the British and American zones, upon British insistence. Stalin agreed with this decision on a single condition: the zones which will be given to France wouldn't be the ones of the USSR.