The annual budget for the Maastricht-based air traffic control in the Benelux countries and large parts of northwest Germany is in danger of failing due to resistance from Belgium. The air traffic controllers' union TUEM warns of serious consequences for air traffic in 2023. "The fact that Belgium is once again the only country to block the budget of Europe's most productive air traffic control center is selfish, irresponsible and endangers smooth and safe air traffic in Europe," emphasizes TUEM President Stefan Pille. The Maastricht Upper Area Control Center (MUAC) monitors the airspace over Belgium, the Netherlands, Luxembourg and large parts of northwest Germany. The air traffic controllers based there guide 5.000 aircraft with over 500.000 passengers through one of the most complex and dense airspaces in the world every day. The funding is shared between Belgium, the Netherlands, Luxembourg and Germany. MUAC has the highest productivity values of all air traffic control centers in Europe. Sales have exceeded expenditure for over 20 years, and even in the Corona crisis, when air traffic collapsed sharply worldwide, a positive result was achieved. The profits benefit the sponsoring countries. "All countries, including Belgium, get significantly more back from MUAC every year than they pay in - even in the past years of crisis," emphasized Pille. "It is therefore completely unacceptable that Belgium puts its own political interests before the interests of passengers and employees." Pille pointed out that the work of air traffic controllers has been more stressful than average over the past three years. The background to this was staff shortages caused by the Corona pandemic and, most recently, the increase in civil and military air traffic due to the war in Ukraine. "Uncertainty about whether their salaries can be paid in 2023 is the last thing the