 Complete the following phrase:  In 1910, Jijikhia, already a captain, was transferred in Congress Poland to serve in the staff of the 6th Infantry Division and then of the 15th Army Corps in which he served during World War I. He took part in the Russian invasion of East Prussia 1914 and was captured by the Germans in the Battle of Tannenberg 1914. Once released, he joined the army of the newly established and initially German-friendly independent Georgian republic in 1918 and was promoted to major general in 1919. During the 