Well, the fact he stayed in Belgium is the reason why the Nazis proclaimed a puppet Kingdom of Belgium and not some sort of "Republic of Belgium" as they did in the Netherlands and Norway.The Belgian King Leopold III indeed tried to negociate the best possible conditions for his people. IOTL however he did not collaborate with the Nazi's. In fact in 1944 he was captured and deported to Austria as a hostage.
Well, Mussert could be some sort of puppet President while either one of the people you named could be the Chancellor/Premier of said Dutch "republic".To be honest why the Nazis chose Mussert to be "Leider" of the Dutch still amazes me. IOTL and in this TL. Rost van Tonningen or van Geelkerken where more loyal to the Nazi line. Mussert was more a fascist like Mussolini and not interested in the racial war of the Nazis. That is BTW what Mussert had in common with Quisling both were quite feebleminded and did not notice they were puppets of Berlin.
What about Romania, Bulgaria, Hungary, Yugoslavia (it was an Axis member until a pro-British coup led to it's invasion), Spain, and Italy?March 17, 1941: In Berlin the "Mitteleuropa conference starts. Germany and it's satellite states Norway, Denmark, The Netherlands and Belgium discuss economic cooperation. In a later stage France and Finland are invited to join.
April 30, 1941: In Copenhagen a militarypact between Germany and it's satellite states is signed.
June 29, 1941: On the birthday of Prince Bernhard the Dutch gather to the streets to sing patriotic songs. In Amsterdam and Nijmegen these gatherings end in rioting with Dutch police and German Soldiers.
June 30, 1941: 24 Dutch civilians are shot at the Waalsdorpervlakte near Den Haag by the Dutch police. In all university cities a curfew is in effect.
Marshal Semyon Timoshenko.Who's the leader of the USSR now?
Actually the USSR and Germany are getting along in this TL.May 22, 1941: Marshal Semyon Timoshenko, military dictator of the Soviet Union, receives the British Prime Minister in Moscow and discusses plans for an anti-German alliance system called the Allied Pact.
Okay then, also, can you post about the Second Sino-Japanese War and your view on my New Union collab TL.Actually the USSR and Germany are getting along in this TL.