Depends on how far they go. A friend of mine in Germany had 3500 helicopter hours when he left the military but STILL had to fly all of the hours required by an Ab Initio pilot as none of the aircraft he had flown were on the civil register.
Don't forget that these eurocrats can be very anal! They might treat ex-military as ab-initio students. That was being banded about after the change from national to JAA. Luckily they saw sense then, I'm rather hoping that will be the case this time.
A classic on our flight the other day from Brussels was a Euro MP who had booked economy, even though they budget for club, got on the aircraft, took the number 1 aside and quietly mentioned he was an MEP and could he get upgraded to club. She replied certainly sir, take a seat in row 1. After take off she went back and informed him, in accordance with the ticketing regulations, the upgrade would cost £100 pounds. Please swipe here. Apparently his face was priceless. To$$ers.