Football Manager 2021
98 Achievements
Steam
National Service
You were offered a job in senior international management
21.0%
How to unlock the National Service achievement in Football Manager 2021 - Definitive Guide
The easiest way I found is to start unemployed with global experience, then while you are in game, add a new manager that is a manager of an international team (preferably a smaller team like Bahrain). Immediately retire with the new added manager; you should be now be in control of your unemployed manager and the role of head coach for the international team should now be in the Job Center. Simply apply and wait a day or two for your achievement :)