Before each flight it is recommended to check if there are specifc rules to fly at that specific location.
For Belgium:
More information about these “geozones” can be found here:
https://mobilit.belgium.be/nl/luchtvaart/drones/nieuwe_regelgeving/geografische_zones
For the UK:
More information about these ‘geozones’ can be found here:
https://dronesafe.uk/restrictions/
For the Netherlands:
For Luxembourg:
https://dac.gouvernement.lu/en/drones/geozones.html