ARE YOU AN ARMED FORCES DEPENDANT?
ARE YOU A NON EEA CITIZEN AND ALREADY HAVE A UK ENTRY VISA?
WILL IT EXPIRE BEFORE YOU LEAVE BFG?
If you can answer yes to these questions, you need to check in with your unit welfare office to discuss how to renew your visa before it expires.
It is important to be aware that your current visa may already be counting towards you gaining UK settlement. However, if you allow it to expire you will be disadvantaging yourself and need to start the five year qualifying period again.