US President Donald Trump's team has ordered the termination of vital support for F-16 fighter jet jamming equipment that Ukraine has. What is important to understand is that this could deprive the Ukrainian Air Force of its most important air countermeasures.
A lot of F16 parts were manufactured in Europe as well, it was part of the deal to buy the aircrafts.
I’ve worked for multiple aerospace companies in Belgium and Switzerland that were manufacturing f16 parts.