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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク South-Eastern Finland fortification system ： ウィキペディア英語版 South-Eastern Finland fortification system South-Eastern Finland fortification system is an extensive defensive system formed by three concentric fortress chains in South-East Finland built by Russia in the 1790s. The purpose of the fortification system was to protect the capital of the Russian Empire, Saint Petersburg, from a possible Swedish attack. == Russo-Swedish War of 1788–1790 and the defence of Saint Petersburg == Before the South-Eastern Finland fortification system was built, the defence of the Russian-controlled South-East Finland or Old Finland in 18th century relied mainly on the fortresses captured from Sweden. Russia had acquired the medieval castles in Vyborg (Viipuri) and Korela (Käkisalmi) in the Treaty of Nystad 1721. In the 1743 Treaty of Åbo Sweden ceded the 17th-century fortress in Lappeenranta and the Hamina fortress built in the 1720s as well as the medieval castle of Olavinlinna in Savonlinna to Russia. The only new fortress built by Russia in Old Finland before the 1790s was the construction of the first phase of the Taavetti fortress in Luumäki between 1773–1781. The Russo-Swedish War of 1788–1790 started by the new King Gustav III of Sweden ended in the Treaty of Värälä with neither side gaining territory. Nevertheless, the victories the Swedish army achieved in the war had shown that the defences of the North-Western border of Russia were inadequate and the capital of Saint Petersburg – located relatively close to the border – was thus in potential danger. After the war Russia began to strengthen the defences in Old Finland. The empress of Russia, Catherine II, gave the responsibility of strengthening the defences by creating a strong fortification system to General Alexander Suvorov in 1791. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「South-Eastern Finland fortification system」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.