Comment by xg15

Even if it were true, it sounds like an obvious loophole if one party could simply refuse to consider the other party a state and instantly get rid if all legal liability.

Which is actually one of the major issues of conflict with the Palestinians. The Palestinians want to be a state and most of the world considers them one. It's just that Israel and the US (together with other countries) don't and that the US also blocks official designation by the UN.