Battle of Friedland

On 14 June 1807 — the anniversary of Marengo — Napoleon engaged the Russian army of General Bennigsen at Friedland in East Prussia (now Pravdinsk, Russia). Bennigsen had positioned his army of 60,000 with its back to the Alle River and only one bridge for retreat, in terrain that offered Napoleon an overwhelming artillery advantage. Marshal Ney's corps delivered the initial assault on the Russian left, driving it toward the river while French artillery poured fire into packed formations that had nowhere to fall back. The Russian army suffered perhaps 18,000 casualties and lost most of its artillery; French losses were around 8,000. The destruction of Bennigsen's force left Alexander I without a credible army between Napoleon and the Russian interior, and the Tsar agreed to negotiate. The resulting Treaties of Tilsit, signed weeks later, effectively ended the War of the Fourth Coalition and left France dominant over all of Europe west of Russia. The choice of 14 June — Marengo's anniversary — was Napoleon's: he had a theatrical sense of historical symmetry and used it to stage his greatest diplomatic triumph.

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