Forming groups to kill other groups over territory, resources or belief is so much a part of the human condition that when a nation is denied those traditional casus belli it will often deploy martial terminology in places where armies have no obvious role. Thus, the ink had barely dried at Yalta when a bunch of bleeding-heart Brits, undeterred by the irony of including one of the main causes of third world poverty in the name of a charity dedicated to its relief, declared a War on Want.