Osprey's examination of the Battle of Poltava (1709), which marked the demise of Sweden as a European great power and the rise of Russia. In 1707, the seemingly invincible Charles XII led his army deep into Russia. It was to prove his undoing - the long march eroded the fighting strength of the invaders; a vital supply convoy was lost; and the winter of 1708/9 was the worst in living memory. Drawing upon primary source material previously unseen in...