Step 1
My item is going to:

Choose the destination for your item
Help for HM Forces

* for Channel Islands select Overseas

Step 2
My item is a:

Select what your item is
Help for Letter
Help for Letter
Help for Small Packets
Help for Large Letter
Help for Small Parcel
Help for Medium Parcel

Step 3
Delivery options:

Choose any additional delivery options
Help for Signed For