Vistula Lagoon million. However, major ecological considerations stand in the way. For example, mammal migration along the lagoon could be disrupted. Also, the inflow of brackish waters from the Baltic sea could result in serious unbalancing of the lagoon's freshwater ecosystem. From 1772 until 1918, the lagoon was part of the Kingdom of Prussia, which had become part of the German Empire in 1871. Between 1920 and 1946 it was split between Germany and the Free City of Danzig. At present state since 1945 its eastern part belongs to Russia (formerly USSR), Poland has 43.8% of its area at lagoon's western side.
Battle of Vistula Lagoon which were staffed with five hundred men armed with crossbows and arquebuses. To delay the enemy, they sank a galley at a narrow part of the Vistula, which blocked the entrance from the lagoon to the river. Coming upon the obstacle, von Erlichshausen stalled long enough for the Elbing ships to join up with those of Danzig. Together, the two cities had around 30 ships of various types, 600 to 700 armed men, and a similar number of sailors manning the ships themselves. Von Erlichshausen ordered a withdrawal into the lagoon where his ships bunched up close to the shore.