In World War 2, in which country was the Mannerheim Line built?
Mannerheim Line Mannerheim Line The Mannerheim Line (, ) was a defensive fortification line on the Karelian Isthmus built by Finland against the Soviet Union. During the Winter War it became known as the Mannerheim Line, after Field Marshal Baron Carl Gustaf Emil Mannerheim. The line was constructed in two phases: 1920–1924 and 1932–1939. By November 1939, when the Winter War began, the line was by no means complete. After the October Revolution in Russia, the Finns declared independence in 1917. Although Soviet Russia recognized Finland's independence, the Finns did not trust their sincerity. The relationship between the two countries deteriorated, with
Mannerheim Line as fallen trees and boulders were incorporated into defensive positions. The Finns also mastered camouflage techniques, which they put to good use. The Mannerheim line was not constructed at great expense. Its purpose was to delay more than repel an invasion. It used predominantly local materials. The line applied the methodology of the flexible defence, thus it used trenches and obstacles rather than large pillboxes. The name Mannerheim Line was supposedly coined by Jorma Gallen-Kallela and spread by foreign journalists. In the Winter War the Line halted the Soviet advance for two months. Fort Saarenpää was attacked by the Soviet