Just five years ago we had a Strategic Defence and Security Review which proposed armed forces configured for an age of austerity when most of the threats we faced were, at the very least, containable. We were pulling out of an expensive war in Afghanistan... Just five years later we live in a very different world.
Filling the cracks in this chaos, the Islamic State has extended its reach into Libya. While Egypt has publically launched airstrikes on Libya following the mass execution of 21 Egyptians by the Islamic State, some European countries seem once again to be readying themselves for military intervention.
Moving forward, we need to recognise the important role our nuclear deterrent plays internationally. Despite the global security environment having changed markedly since 1940, to abandon our deterrent now would only serve to undermine our own security, the security of our allies and that of liberal democracy globally.