As the name says Is the air force of the Netherlands during the WW2, despite the capitulation of the country, the Dutch air force stay active for the whole conflicts being part of almost all the big operation in both Pacific and Europe
I suggest the squad itself to come as event for allies with the Fokker D.XXI as BR2 fighter
The Fokker D.XXI stats are
Flight performance
Max speed 425 km/h
Max altitude10 100 m
EngineBristol Mercury VIII
TypeRadial
Cooling systemAir
Take-off weight2t
Turn time 17.4
Climb 11.6
Offensive armament
Weapon 1, 2 x 20 mm Oerlikon FF cannon
Ammunition120 rounds, Fire rate468 shots/min
Weapon 2, 2 x 7.7 mm FN-Browning M.36 No.3 machine gun, Ammunition1 000 rounds, Fire rate1 600 shots/min
Rather than an event squad I’d much rather have it integrated into a sub-faction, akin to what @coldestwinter suggested (sorry for @'ing you so many times):
It could be useful as a very manouverable low-altitude fighter plane for tier1 or 2
Sure, has no bombs, but is armed with MGs and a 20mm cannon and could be manouverable at low altitudes such as that russian biplane at tier 1 armed with rockets, i forgot its name