The four countries on the Baltic Sea that were formerly parts of the Russian Empire – Finland , Estonia , Latvia and Lithuania – consolidated their borders and independence after the Estonian , Latvian and Lithuanian independence wars following the end of World War I by 1920 ( see Treaty of Tartu , Latvian-Soviet Riga Peace Treaty and Soviet-Lithuanian Treaty of 1920 ) .
DET NUM NOUN ADP DET PROPN PROPN DET VERB ADV NOUN ADP DET ADJ PROPN – PROPN , PROPN , PROPN CCONJ PROPN – VERB PRON NOUN CCONJ NOUN ADP DET ADJ , ADJ CCONJ ADJ NOUN NOUN VERB DET NOUN ADP PROPN PROPN PRON ADP NUM ( VERB PROPN ADP PROPN , PROPN PROPN PROPN PROPN CCONJ PROPN PROPN ADP NUM ) .