Around 8:25 everything on deck indeed except for some Dutch Apaches which were already flying north. Around 9:40 at least a Cougar and 2 Polish Mi's departed to the north.
From the eastern side (Venray raceway) the NH90's, Cougars and Apaches are clearly visible along the fence. Don't know about the Chinooks and where the Polish are parked.
The western side is quite difficult. You can't overview the field from there.