During the heyday of Irish terrorism in the UK, successive British governments went out of their way not to concede to the IRA the notion that a war was being waged. “War” would have meant acceptance of the terrorists as legitimate enemies, in a sense as equals in a bloody contest for which there are accepted rules of engagement.
但是，那果真是一场开于2001年9月11日的战争吗？并不是所有人都赞同这一美国式的观点。当爱尔兰恐怖主义在英国猖獗之际，各届英国政府都竭力不屈从于爱尔兰共和军的观点，即正在进行一场战争。“战争”将会意味着把恐怖分子接受为合法的敌人，其含义与具有认同的交战规则的一场血腥战争的对等体相同。