The US has "bigger guns diplomacy" here -- they can kind of do whatever they want to unless the country really wants to put up a fight. There's a lot of non-empty threats the US will make.
France for instance will protect her own citizens at all costs. It's why Roman Polanski, a convicted rapist, still walks around a free man there. [0]
[0]: https://en.wikipedia.org/wiki/Roman_Polanski_sexual_abuse_ca...