Russia's Baltic Sea exclave of Kaliningrad, sandwiched between Lithuania and Poland, became part of the Soviet Union after World War II. It has a population of about 430,000 people and hosts the headquarters of Russia's Baltic sea fleet. ***** The EU sanctions list includes coal, metals, construction materials, and advanced technology. Anton Alikhanov, the governor of the Russian oblast, said the ban would cover around 50 percent of the items that Kaliningrad imports. Alikhanov said the region, which has an ice-free port on the Baltic Sea, will call on Russian federal authorities to take tit-for-tat measures against the EU country...