[atul]

I don't remember seeing this in here, but.

If nation A is being sieged by B in a province with a fort, nation C's scouts (etc) can be set to 'Defend' in said province with either hotkey command or by canceling some previous order. Usually, if you set your sneaking commander to 'Defend', it attacks the province it is in. But if the province is a sieged castle, then it won't.

However, should B storm the fort and win, nation C's defending scouts end up sieging the fort with B's stormers inside. Same happens if sieged gets a barbarian/knight attack in the province, because it would appear indies default to 'Defend', and don't appear until the siege is resolved.

I'd think the logical behaviour would be that the third-party 'Defenders' would attack the sieging force, instead of defaulting to some sort of sneaky defence.