> I thought France left and rejoined a few decades later, have things changed since then or did they only leave a small part of NATO?

France left the unified military command (in stages) but later returned. To a certain extent the partial breach seems to have been magnified for domestic purposes, as secret agreements on reintegration in the event of an East-West conflict have since come to light. They also have always been outside of the nuclear planning group.

But, in any case, they never left the alliance.

They froze their membership. They did not leave, but they did not participate either.

> France quit the unified NATO military command structure, but not the organization. This means that France agreed to help a NATO member if it was attacked but on its own terms.

https://historyofyesterday.com/why-did-france-leave-nato-at-...

Thanks for the info; that seems weird, but no weirder than anything else in politics.