 Complete the following phrase:  During World War I, Russia briefly occupied a small part of East Prussia, then part of Germany; a significant portion of Austrian Galicia; and significant portions of Ottoman Armenia. While the modern Russian Federation currently controls the Kaliningrad Oblast, which comprised the northern part of East Prussia, this differs from the area captured by the Empire in 1914, though there was some overlap: Gusev Gumbinnen in German was the site of the initial 