Belgium and Holland were not genuine neutrals in 1939-40. The Belgian military was working with the French military and the Dutch armed forces were doing the same with their British counterparts. The Dutch government also allowed the RAF to fly over its territory to bomb targets in Germany. Protests from the German ambassador to Holland were ignored. That's why Hitler attacked the Low Countries - they were not genuine neutrals. And what if the shoe was on the other foot ? What if the Belgians and Dutch were working with the Germans ? Do you think Churchill would have hesitated to attack them ? I doubt it!
https://forum.codoh.com/viewtopic.php?f=20&t=12153
Above link includes info on book in Dutch language by Loe De Jong called Het Koninkrijk Der Nederlanden In De Tweede Wereldoorlog.
Nice revisionist history/fantasy, be a shame if some facts were to come by and poke holes in it.
The Belgians stopped working with France in 1920 on defence matters. By 1937 they had a non-aggression pact with Germany (fat lot of good that did, almost as much as the one Poland had with Germany). The Belgians were NOT working with the western Allies - there were no British or French troops in Belgium until after May 10, 1940 when the ever so trustworthy Nazis decided that non-aggression pacts were something other countries honoured and invaded.
The Dutch didn't resist overflights for a very simple reason - they had deliberately not spent large sums on their non-colonial forces on the pragmatic assessment that they could not resist a full out attack from any of the major powers. And then of course there was that guarantee of neutrality that the Germans gave in October of 1939 - damn, Nazi Germany really was an untrustworthy sort of nation wasn't it?
And then there is that rather inconvenient bit for your mandatory bit of Churchill hate is that he did not become PM until May 10, 1940 - which coincidently is the date that Nazi Germany broke its non aggression pacts with The Netherlands, Belgium and Luxembourg and invaded.
For the record, lets review the "non-aggression pacts" that Nazi Germany broke:
a. Czechoslovakia - 1938
b. Poland - 1939
c. The Netherlands - 1940
d. Belgium - 1940
e. Luxembourg - 1940
f. USSR - 1941
I was tempted to include the neutral countries of Denmark and Norway, as they had been offered non-aggression pacts by Nazi Germany in April 1939, but the governments in both countries had not entered into them, so instead of attacking a nation they had formally promised not to attack, the Nazis simply attacked neutral countries.
Essentially, the Nazis were a bunch of untrustworthy scum, who would break their promises as soon as they felt they could get away with it. Cowards and bullies, the lot of them.