After the Bolshevik Revolution in 1917, the Belgian force remained in Russia until the Treaty of Brest-Litovsk withdrew Russia from the war. After the ceasefire, the unit found itself in hostile territory. As the route north to Murmansk was blocked, the soldiers destroyed their armoured cars to prevent their capture by Bolshevik forces. The unit finally reached the United States through China and the Trans-Siberian railway in June 1918.