 Complete the following phrase:  Some units were provided to World War I ally Russia. It was decided to sell 80 of them to the Russians, these would serve on the standard gauge lines of Galicia and in eastern Poland. However, some were lost at sea when a U-boat torpedoed the ship transporting them and others fell victim to derailments during their transport. 21 examples remained in France because of the Russian Revolution of 1917 and the armistice signed with the Germans. Five others were found in Kiev by the Poles and were returned to Belgium in 1920. It is also thought that some locomotives were in Ukraine during 