Does Parliament now have a vote before soldiers are ever sent into action? This seems to be the argument of Anne Perkins. Would this override treaty obligations such as NATO?
The answer is surely negative. Specific interventions, subject or not to UN approval, may now require parliementary approval. Defending British territory or meeting treaty obligations are surely still the prerogative of the executive. Could one foresee the PM demanding a vote if Britain were invaded or if Article V of the NATO Charter was invoked?
Mapping this precedent will take some time and further wars.