I must be missing something, but I don't think that is in our policies. Quote for me where it is written and prove me wrong because I just re-read our posted policy and it is not anywhere I can see.
Sorry Sov, I paraphrased because most of us don't bother with the longwinded version. Since you couldn't find the part, here it is...
"* Self-farming is defined by any countries involved in any kind of intra-alliance grabbing (including 3rd party retals). Grabbing your own members, whether active or not is a cheap way of gaining an individual advantage. This includes letting another country retal and then grabbing that country (3rd party retals). Not only can that member not dissuade others from grabbing their land and not defend their land, but they can't even get it back themselves, hence being totally undeserving of that land. "