Tonio, Ampo, the amount of territory taken from Spain probably amounted to over 200 warscore. If Hal were now to try to take all of that back, it would require 2-3 victories. That is not an acceptable gain in one war without a proportionate cost to the taker, like the one provided by the game mechanics. The dangerous precedent would be to send a message to attackers that they can collapse the government of the country they invade, and expect to have their badboy wiped out afterwards. Moreover, this was a predictable outcome. When rebels spawn in the enemy capital, and stab is low, with more rebels spread across the countryside, it's only a matter of time before a government collapses. Your decision to send stabhits at a regular spate came with a risk, and this was the risk. The alternative option would have been to wait until the five year mark had passed, and then go for a forced peace. I don't like stubbornness on the part of losing parties either, but this is after all the reason we have the forced peace rule.