Poland is like an island on the north European plain. At times the island has been swamped by a tide of iron or steel helmets converging from Germany… - Geoffrey Blainey

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Poland is like an island on the north European plain. At times the island has been swamped by a tide of iron or steel helmets converging from Germany and Russia. At times it has drifted suddenly with the current; if the continent of Africa had drifted relatively as much as the boundaries of Poland have drifted in the last two hundred years, then Africa would at one time have touched the north pole and at another the south pole.