TWICE IT VANISHED from the map, swallowed up by its rapacious neighbours. After it emerged from the second world war as a Soviet satellite, it endured decades of oppression. Today, Poland has transformed itself into Europe’s most overlooked military and economic power—with a bigger army than Britain, France or Germany and living standards, adjusted for purchasing power, that are about to eclipse Japan’s. Yet, just when Poland should stand proud and tall once more, is it about to throw away its influence?