I've always wondered about the "protected" status alliances offer to POW's. I do not think very highly of people surrendering, as to me, it seems they are deserting their alliance for their infra. Infra can be re bought, it takes a lot of effort to patch up a trust for someone, and sometimes not at all. What this all leads up to is that, you can't really "guarantee" immunity to those that surrendered, as their own alliance members may end up attacking them for desertion, subsequently the former alliance member attacking the POW will be attacked by the same alliance they are already at war against. It's a cycle that makes no sense to me.