It is difficult to say which NATO air force bases have the most fighter jets, as some airbases have aircraft permanently assigned, while others are temporary or rotational, so the actual numbers can change significantly from one period to the next. For example, the US Air Force’s RAF Lakenheath in England is listed here as the 5th by most fighter jets, even though, as of the time of writing, most of the jets have likely been deployed to the Middle East to take part in operations against Iran.