retirement age
In France ( Civil servant organisation) :
Mandatory : 57
You can ask to leave at 50 but with a (very) reduced pension scheme.
To have a full scheme (on your basic salary), you should have paid for your pension during 37,5 years for ATCOs born until 1950, then it is moving up by law to 40 years by an annual increment of 6 month for the next 5 years.