When was Germany at war with Russia and France? When was a truce signed? How many years did the war last?

The Armistice of 11 November 1918 was the armistice signed at Le Francport near Compiègne that ended fighting on land, sea and air in World War I between the Allies and their last remaining opponent, Germany. Previous armistices had been agreed with Bulgaria, the Ottoman Empire and the Austro-Hungarian Empire. Also known as the Armistice of Compiègne from the place where it was signed at 5:45 a.m. by the Allied Supreme Commander, French Marshal Ferdinand Foch,[1] it came into force at 11:00 a.m. Paris time on 11 November 1918 and marked a victory for the Allies and a defeat for Germany, although not formally a surrender.

The answer is installation.