When the world held its breath ... It is 25 years since the end of the Cold War, now a generation old. It began over 75 years ago, in 1944--long before the last shots of the Second World War had echoed across the wastelands of Eastern Europe--with the brutal Greek Civil War. The battle lines are no longer drawn, but they linger on, unwittingly or not, in conflict zones such as Iraq, Somalia and Ukraine. In an era of mass-produced AK-47s and ICBMs,...