Travelling through the Istrian region of Croatia, you'd be forgiven for wondering if you'd stumbled into rural Italy at first glance. Lush expanses of carefully preened produce are everyday scenery in this part of the world. Olive groves and vineyards stretch out in every direction, disturbed only by the occasional mountain and sea view.
If we know one thing, we know wars are dreadful, the worst that can happen to mankind. So how can we deal with the awkward fact that, in the great sweep of human history, wars have surprisingly often produced the breakthroughs, in ideas as well as technologies, the rest of us then come to depend on?