Thanks to this dynastic arrangement, Mieszko renewed and reinforced the Polish sovereignty over the Western Pomerania.

At the same time he became involved in various political organizations supporting the idea of restoration of Polish sovereignty.

The plan was intended both as a political manifestation of Polish sovereignty and as a direct operation against the German occupiers.

During the war of Polish succession, he was sent with the troops of a regiment of Dragoons and joined the defenders for Polish sovereignty.

However, since Germans formed a majority in the city, with Poles being a minority, the city was not placed under Polish sovereignty.

The prosecutors deny that the undercover operation violated Polish sovereignty or any treaty terms involving the United States and Poland.

Plans to restore Polish sovereignty over Pomerania.

Polish sovereignty over Lviv was internationally recognised when the Council of Ambassadors ultimately approved it in March 1923.

Polish culture in the interwar period witnessed the rebirth of Polish sovereignty.

A few days after this Poland delivered an ultimatum, demanding that Lithuania recognise Polish sovereignty over Vilnius.