KLM academy
No Dutch required for KLM.
About 10 years ago there was a pilot strike in Australia, they all got laid off and a lot of them went to KLM. All Aussie accents on the radio for a while.
KLM school has a very strict admission policy, you go to an assesment centre for all the psycho-babble testing to be done.
They used to admit 30-50 a year with job garantee at the end of it. That's changed now, no more job garantee at the end of 100K training. If they accept a 100 now only the top ten will have a shot at KLM, the rest will have to shop around.
My best guess would be an ICAO ATP with a type-rating on a 737 or similar will put you on their list.