Germany was a participant of the First World War, in the guise of the then-German Empire, or Deutsches Reich.
The hostilities on the Western front, which the game depicts, started due to the German invasion of Belgium and France in August 1914, which continued until it was stopped at the First Battle of the Marne later that year.
The following stalemate and trench warfare, continued into 1918, where, in the Hundred Days' Offensive, a combined Anglo-Franco-American force almost drove the German armies back to the Franco-German frontiers before the armistice on the 11th of November.
In-game, Germany is represented by four squads, their being the primary troops opposite the Entente during the entirety of the war on the Western front. In order of introduction into the game, their squads are as follows: