The good friday agreement was essentially brokered by ignoring it. That seemed preferable to me to the decades of sustained bombings.
It seems to me that no government can make a fully plausible promise that they won't yield under pressure and, in any case, terrorism is extremely ill defined.
I believe the phrase is rational for and applied to ransom situations - just generally pursuing peace with opposing parties is not encapsulated in that phrase, to my understanding.
It seems to me that no government can make a fully plausible promise that they won't yield under pressure and, in any case, terrorism is extremely ill defined.