Events are not isolated in time; past events make future events possible, while future events are determined by the past. If you condemn the events leading to the status quo, then it’s necessarily the case that you should not take the status quo as any sort of ethical baseline. That is, the current inhabitants of the island must not be exposed to war, and they will obviously decide their fate with their actions, but I don’t find a reason to believe that their government deserves any special status regarding the island.