If you, your parent or partner are a member of the armed forces and have a BFPO address, this should be entered follows;
In the 'House Number / Name' field you should enter your forces personal number.
In the 'Address Line 1', 'Address line 2' (if applicable) and the 'Town / City' fields you should enter your unit address. For example:
S02
G1 Medical Branch
HQ UKSC
In the 'Country' field you should select 'United Kingdom' from the drop down menu.
In the 'Post Code' field enter your BFPO post code, for example BFPO 123.