Our campaign begins part way through the real offensives that inspired it. The Battle of the Somme had been raging for 51 days already by this date in 1916, and would continue for more than three months. While there were of course pauses and recovery periods during the battle, it's still a long time to sustain offensive operations.
On the Western Front, the fighting was brought to an end by weather rather than a decision by high command. November 18th saw the last real action of the Battle of the Somme before the rain and snow became too much. Until January the following year the real enemy of soldiers on both sides would be the atrocious weather conditions.
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As the campaign runs we'll be posting updates along with some history facts, but in Verdun and Tannenberg you can see current casualty rates in the main menu and after each battle ends.
Good luck!