Security clearance in Europe
Stub — coming later. This is a placeholder, not a finished guide.
Stub — research still to come. European defence and security posts usually need a national clearance first, then a host-org endorsement (NATO, EU, or bilateral). Later this page will sketch levels, sponsoring employers, typical lag, and what breaks when you move between Brussels, The Hague, and a national HQ. Treat this paragraph as a label, not advice.