Blaker Fortress is a former defense facility located at the village of Blaker in Akershus, Norway.
It was one of the Norwegian fortresses which were constructed in the period of intense competition among the Baltic powers for northern supremacy. In 1675 Ulrik Frederik Gyldenløve, Governor-general of Norway, indicated an intent to construct a fortress in the Glomma river where Blaker lies as part of his general program of Norwegian fortification upgrades. His objective was a stronghold available both to serve as a safe defensive position when necessary and a location to station troops who could take the offensive against invaders when the opportunity availed itself. Blaker Fortress saw action in 1718, when it was surrounded by the invading Swedish army, but the siege collapsed upon the death of King Charles XII of Sweden in front of Fredriksten Fortress.
Source: Wikipedia.org
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