"Rodolphe Polis, press officer at the Belgian MoD, told Defense News that the country currently has 53 F-16s in its inventories.
In 2018, Brussels signed a multi-billion dollar contract with Lockheed Martin for the supply of 34 F-35 fighter jets that are set to replace the aging F-16s it possesses. However, the timeline for these deliveries has already been delayed.
“In April 2023, Minister Dedonder confirmed that only two F-35s out of the initial four would be delivered during the first quarter of 2024,” Alain De Neve, researcher at the Belgium-based Royal Higher Institute for Defense think tank told Defense News. “This means that the F-16 to F-35 transition could face hiccups, meanwhile Belgium is obliged to maintain an operational fleet of aircraft, particularly for its joint missions in the Baltics.”
https://www.defensenews.com/air/202...to-send-f-16s-to-ukraine-but-not-before-2025/