Helsinki Convention on the Protection of the Marine Environment of the Baltic Sea Area Finland, Germany, Latvia, Lithuania, Poland, Russia and Sweden. The Convention on the Protection of the Marine Environment of the Baltic Sea Area, 1992, entered into force on 17 January 2000. The States-Parties to the Convention agreed individually or jointly to take all appropriate legislative, administrative or other relevant measures to prevent and eliminate pollution in order to promote the ecological restoration of the Baltic Sea Area and the preservation of its ecological balance. The Parties undertake to apply: The aim of the States-Parties to the Convention is to prevent and eliminate pollution of the marine environment of the Baltic Sea
Latvia–Russia border Latvia–Russia border Latvia–Russia border is the state border between Republic of Latvia (EU member) and the Russian Federation (CIS member). The length of the border is 214 km. The access-restricted Border Security Zone of Russia lies along the border on the Russian side. In order to visit this zone, a permit issued by the local FSB department is required (the only exceptions are international border transit points). The Pskov region and Latvia have had historical ties since the founding of the Pskov Republic in the 13th century. From 1925 to 1945 Abrene County was part of the Republic of Latvia.