SNU: the New Nationalist Conscript What is the SNU ? : The SNU is a new French national conscription program which will be fully implemented from 2026. The first version of SNU was introduced in 2018. The SNU requires all young French people between the ages of 16 and 25 to attend a month-long training course. If they do not attend, they will not be able to obtain a high school diploma or a driving licence.