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
Poland–Russia border Soviet Union (USSR), shaped during the Polish-Soviet War, and confirmed at the Treaty of Riga at the line Dzisna-Dokshytsy-Słucz-Korets-Ostroh-Zbrucz. That border was long. Following World War II, the new border (see territorial changes of Poland immediately after World War II) was drawn between the People's Republic of Poland and the USSR. The new Polish-Soviet border was long at first, and subject to a minor modification in the 1951 Polish–Soviet territorial exchange, which reduced the border length to . The modern border between Poland and Russia is regulated by a number of legal documents, many of them dating to the times