(A) Vilna and Lithuania
(B) ** Sweden and Finland
(C) Finland and the USSR
(D) Poland and Germany
EXPLANATIONS BELOW
Concept note-1: -One hundred years ago, the Åland Islands were the subject of a dispute between Finland and Sweden. The islands were Swedish until 1809, when, as part of the Grand Duchy of Finland, they became the Russian Empire’s westernmost outpost.
Concept note-2: -Political crisis The cabinet of Finland viewed this position as a purely tactical one, and a dispute over whether the islands rightfully belonged to Sweden or Finland ensued.
Concept note-3: -In the aftermath of the First World War the islands-inhabited by the Swedish-speaking population but belonging to Finland-became an object of a territorial dispute between Finland and Sweden. The residents of the islands claimed their right to self-determination and demanded a reunification with Sweden.
Concept note-4: -The Åland (or Aaland) Islands Question was a dispute about jurisdiction/sovereignty between Finland and Sweden over the islands. It was resolved peacefully by the League of Nations in 1921 ([1921] League of Nations Official Journal 699), before the establishment of the PCIJ.