Some countries (Ireland, France and maybe a few others) agreed with the UK to mutually accept each others sub-ICAO licences (NPPL, LAPL, RPL, Brevet de base, whatever the name) for flight into each others airspace.
When I asked the DGAC if the LAPL was acceptable to fly a G reg in France, their reply referred me to Article 11 of Regulation (EC) 216/2008:
Article 11
Recognition of certificates
1. Member States shall, without further technical requirements
or evaluation, recognise certificates issued in accordance with
this Regulation. When the original recognition is for a particular
purpose or purposes, any subsequent recognition shall cover
only the same purpose or purposes
The obvious message was: "Why are you asking such a silly question?"