Mannerheim Line

The Mannerheim Line (Finnish: Mannerheim-linja, Swedish: Mannerheimlinjen) 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.

History of construction

Background

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 Soviet Russia supporting the Red Guard during the Finnish Civil War in 1918. After the victory of the White Guard, a group of Finnish communists fled to Soviet Russia and established the Communist Party of Finland.

Generally, communism was seen as a threat to a democratic system. The situation was dangerous for a new nation like Finland, especially as the capital of the new communist revolution was nearby Petrograd, (now Saint Petersburg). Furthermore, before the Treaty of Tartu in 1920, the border area was restless. The former general of Imperial Russia, C.G.E. Mannerheim, strongly opposed the bolsheviks. During the Russian Civil War, in 1919, the Finns even considered supporting an assault of the White Guards on Petrograd, but this plan was abandoned as the military situation in the Russian Civil War changed (the Finns also did not believe that the Whites would uphold Finland's independence). Construction work on the Karelian Isthmus had already begun when the Bolsheviks won the Russian Civil War in 1922. The line was constructed in two phases: 1920–1924 and 1932–1939.

Winter War

The Winter War (Finnish: Talvisota, Swedish: Vinterkriget, Norwegian: Vinterkrigen, Russian: Зи́мняя война́, tr. Zimnyaya voyna) was a military conflict between the Soviet Union and Finland in 1939–1940. It began with the Soviet invasion of Finland on 30 November 1939 (three months after the outbreak of World War II), and ended with the Moscow Peace Treaty on 13 March 1940. The League of Nations deemed the attack illegal and expelled the Soviet Union from the League on 14 December 1939.

The Soviet Union ostensibly sought to claim parts of Finnish territory, demanding—amongst other concessions—that Finland cede substantial border territories in exchange for land elsewhere, claiming security reasons, primarily the protection of Leningrad, which was only 32 km (20 mi) from the Finnish border. Finland refused and the USSR invaded the country. Many sources conclude that the Soviet Union had intended to conquer all of Finland, and use the establishment of the puppet Finnish Communist government and the Molotov–Ribbentrop Pact's secret protocols as proof of this, while other sources argue against this idea of a full Soviet conquest.

Carl Gustaf Emil Mannerheim

Baron Carl Gustaf Emil Mannerheim (Swedish pronunciation: [ˈkɑːɭ ˈɡɵˈstav ˈeːmɪl ˈmanːɛrˈheɪm]; in Russian: Густав Карлович Ма́ннергейм, tr. Gustav Karlovich (lit."Karl's son") Mannerheim; 4 June 1867 – 27 January 1951) was a Finnish military leader and statesman. Mannerheim served as the military leader of the Whites in the Finnish Civil War, Regent of Finland (1918–1919), commander-in-chief of Finland's defence forces during World War II, Marshal of Finland, and the sixth president of Finland (1944–1946).

Mannerheim was born in the Grand Duchy of Finland, Russian Empire, into a family of Swedish-speaking aristocrats who had settled in Finland in the late 18th century. His paternal German ancestor Marhein had emigrated to Sweden during the 17th century. His maternal ancestry has its roots in Södermanland, Sweden.

Mannerheim made a career in the Imperial Russian Army, rising to the rank of lieutenant general. He also had a prominent place in the ceremonies for Tsar Nicholas II's coronation and later had several private meetings with the Russian Tsar. After the Bolshevik revolution, Finland declared its independence but was soon embroiled in civil war between the pro-Bolshevik "Reds" and the "Whites," who were the troops of the Senate of Finland. Mannerheim was appointed the military chief of the Whites. Twenty years later, when Finland was twice at war with the Soviet Union from late 1939 until September 1944, Mannerheim successfully led the defence of Finland as commander-in-chief of the country's armed forces. In 1944, when the prospect of Germany's defeat in World War II became clear, Mannerheim was elected President of Finland and oversaw peace negotiations with the Soviet Union and the United Kingdom. (Finland was never at war with the United States.) He resigned the presidency in 1946 and died in 1951.

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Science and technology

Alternate history

Alternate history or alternative history, sometimes abbreviated as AH, is a genre of fiction consisting of stories in which one or more historical events occur differently from reality. These stories usually contain "what if" scenarios at crucial points in history and present an outcome of events alternative to historical record. The stories are the product of conjecture, but are sometimes based on scientific fact. Alternate history can be seen as a sub-genre of literary fiction, science fiction, and/or historical fiction; different alternate history works may use tropes from any or all of these genres. Another term occasionally used for the genre is "allohistory" (literally "other history").

Since the 1950s, this type of fiction has, to a large extent, merged with science fiction tropes involving time travel between alternate histories, psychic awareness of the existence of one universe by the people in another, or time travel that results in history splitting into two or more timelines. Cross-time, time-splitting, and alternate history themes have become so closely interwoven that it is impossible to discuss them fully apart from one another.