The stakes could not be higher for a very simple reason: thereferendum in Britain is taking place at a time of major international ferment and challenge. For Britain to quit Europe would be an unprecedented act of political self-destruction.
Not only would it have a devastating impact on Britain’s strength in the world; it also threatens a domino effect on the institutions that help make the world a more secure, prosperous and stable place. We are living through an unprecedented challenge to the institutions and values that have advanced human security, prosperity and dignity over the last two generations. These institutions, including the EU, are far from perfect and they need reform, but they uphold the core idea of an international order based on clear rules.