In France there is a commonly held belief (difficult/impossible to prove) that US weapons/hardware can be shut down by the US at any time.
Yes, paranoia about does seem to be common. What was one of the US’s most sensitive weapon systems say, 40 years ago?
The AIM-54 Phoenix air to air missile and associated AWG-9 fire control system as fitted to the F-14 Tomcat, certainly there was a lot of concern about the security of that system, seen as vital for the air defence of US Carrier Battle Groups against sustained air and missile attacks, which had been brought by Iran.
Now suddenly Iran was a hostile nation, would the Soviets get hold of it? Especially if suddenly deprived of technical support, it was not as if Iran really had the industrial base to support them.
And yet.....Iran used the system, in combat from 1980 against Iraq, for years afterwards.
So where was the fabled ability for the US, god like, to ‘switch off’ this sophisticated weapon system?
Just one example but this whole idea ‘common in France’ seems to be a modern day version of the Dreyfus Affair, a deep paranoia embedded in aspects of French society including the military.
One reason why the US supplied first Polaris, then Trident to the UK, is a very long standing desire not to have France as the only European nation with nuclear weapons, they remember the tumult around Algeria, the political instability, the wannabe coup instigators of the OAS and their multiple attempts to assassinate the President, having a large Communist Party also did not help and to cap it all, twice this century the rise of the Facist National Front getting to second place in Presidential elections.