The Russian Revolution of 1905, also known as the First Russian Revolution, began on 22 January 1905. A wave of mass political and social unrest then began to spread across the vast areas of the Russian Empire. The unrest was directed primarily against the Tsar, the nobility, and the ruling class. It included worker strikes, peasant unrest, and military mutinies. In response to the public pressure, Tsar Nicholas II was forced to go back on his earlier authoritarian stance and enact some reform. This took the form of establishing the State Duma, the multi-party system, and the Russian Constitution of 1906. Despite popular participation in the Duma, the parliament was unable to issue laws of its own, and frequently came into conflict with Nicholas. The Duma's power was limited and Nicholas continued to hold the ruling authority. Furthermore, he could dissolve the Duma, which he did three times in order to get rid of the opposition.
Suomenlinna, or Sveaborg, is an inhabited sea fortress composed of eight islands, of which six have been fortified; it is about 4 km southeast of the city center of Helsinki, the capital of Finland. Suomenlinna is popular with tourists and locals, who enjoy it as a picturesque picnic site. Originally named Sveaborg, or Viapori as referred to by Finnish-speaking Finns, it was renamed in Finnish to Suomenlinna in 1918 for patriotic and nationalistic reasons, though it is still known by its original name in Sweden and by Swedish-speaking Finns. Due to its strategic geographical location, it sometimes used to be known as Gibraltar of the North.
Baron Jacob Magnus Sprengtporten (1727–1786) was a Swedish-Finnish army officer and politician, and half-brother of Georg Magnus Sprengtporten. He is most famous as one of the leaders of the Revolution of 1772, the coup d'état which ended the age of constitutional monarchy in Sweden known as the Age of Liberty and ushered in the period of absolute monarchy known as the Gustavian era.
The Finnish War was fought between the Kingdom of Sweden and the Russian Empire from 21 February 1808 to 17 September 1809 as part of the Napoleonic Wars. As a result of the war, the eastern third of Sweden was established as the autonomous Grand Duchy of Finland, a state under the rule of the Russian Empire. Other notable effects were the Swedish parliament's adoption of a new constitution and the establishment of the House of Bernadotte, the new Swedish royal house, in 1818.
The White Guard, officially known as the Civil Guard, was a voluntary militia, part of the Finnish Whites movement, that emerged victorious over the socialist Red Guards in the Finnish Civil War of 1918. They were generally known as the "White Guard" in the West due to their opposition to the "communist" Red Guards. In the White Army of Finland many participants were recruits, draftees and German-trained Jägers – rather than part of the paramilitary. The central organization was named the White Guard Organization, and the organization consisted of local chapters in municipalities.
Warsaw Citadel is a 19th-century fortress in Warsaw, Poland. It was built by order of Tsar Nicholas I after the suppression of the 1830 November Uprising in order to bolster imperial Russian control of the city. It served as a prison into the late 1930s, especially the dreaded Tenth Pavilion of the Warsaw Citadel ; the latter has been a museum since 1963.
The Red Guards were the paramilitary units of the labour movement in Finland during the early 1900s. The Red Guards formed the army of Red Finland and were one of the main belligerents of the Finnish Civil War in 1918.
The Battle of Christmas Island was a small engagement which began on 31 March 1942, during World War II. Assisted by a mutiny of soldiers of the British Indian Army against their British officers, Imperial Japanese Army troops were able to occupy Christmas Island without any land-based resistance. The United States Navy submarine Seawolf caused severe damage to the Imperial Japanese Navy cruiser Naka during the landings.
Walhalla-orden was a secret society founded in the early part of 1783 in the Sveaborg fortress outside Helsinki, Finland by Johan Anders Jägerhorn along with Gustaf Adolf Reuterholm. It is thought to have been instrumental in setting in motion forces that eventually caused Finnish independence.
The Suomenlinna Church in Helsinki, Finland, was built in 1854 as an Eastern Orthodox garrison church for the Russian troops stationed at the Suomenlinna sea fortress. The fortress comprises five islands joined together by bridges, and the church is the central feature on the island of Iso Mustasaari, located at its highest point. It is surrounded by other fortress buildings, but the old parade ground is immediately to the east, and a park lies immediately to the south. It is oriented southwest to northeast so that it would align with the Crownwork Ehrensvärd defense front located to the southwest of the church.
The Cocos Islands mutiny was a failed mutiny by Sri Lankan soldiers against British officers, on the Cocos (Keeling) Islands on 8 May 1942, during the Second World War.
Captain Johan Kock was a Finnish soldier who had been decommissioned from the Finnish army in Viipuri in 1897. Kock was a revolutionary who was the leader of the Finnish Labour Corps from 1905 to 1906.
Carl Olof Cronstedt the elder was a Swedish naval commander responsible for the overwhelming Swedish victory at the Second Battle of Svensksund, one of the largest naval battles in history. He is often better remembered, however, as the commander of the fortress of Sveaborg during the Finnish War in 1808–09, which was fought between Sweden and Imperial Russia, and ended in Cronstedt surrendering the fortress.
The siege of Sveaborg was a siege by Imperial Russian forces of the sea fort of Sveaborg, off the coast of Helsingfors (Helsinki); at the time Finland was part of the Kingdom of Sweden. It took place in the spring of 1808, during the Finnish War. Despite its formidable reputation as "the Gibraltar of the North", the fortress surrendered after a siege of two months. As its capitulation was followed by the rapid collapse of Swedish resistance elsewhere, and ultimately the Russian conquest of Finland, the siege is often regarded as the decisive battle of the war.
Peter the Great's Naval Fortress or the Tallinn-Porkkala defence station was a Russian fortification line, which aimed to block access to the Russian capital Saint Petersburg via the sea. The plans for the fortress included heavy coastal artillery pieces along the northern and southern shores of the Gulf of Finland. The emphasis was put on the defenses of the gulf's narrowest point, between Porkkala, and Tallinn,. This was a strategic point, as the two fortresses of Mäkiluoto and Naissaar were only 36 kilometres (22 mi) apart. The coastal artillery had a range of about 25 km (16 mi) and could thus "close" the gap between the shores, trapping enemy ships in a crossfire. Furthermore, a new major naval base was constructed in Tallinn.
The Svartholm fortress was built between 1749 and 1764 outside Loviisa in Southern Finland by Augustin Ehrensvärd. The fortress, which lies at the mouth of the Bay of Loviisa, along with the planned land fortress at Loviisa, would have prevented invading Russian forces from entering what was then Swedish territory in present-day Finland.
The Krepost Sveaborg was an Imperial Russian system of land and coastal fortifications constructed around Helsinki during the First World War. The purpose of the fortress was to provide a secure naval base for the Russian Baltic fleet and to protect Helsinki and block routes to Saint Petersburg from a possible German invasion. Krepost Sveaborg was part of Peter the Great's Naval Fortress, a coastal fortification system protecting access to Saint Petersburg by sea. The central part of Krepost Sveaborg was the old fortress of Suomenlinna where the fortress headquarters were located. Due to technological advances in artillery the old fortress was no longer capable of providing a sufficient protection, and a new main defensive line was built well beyond the old fortress boundaries. New coastal artillery guns built on outlying islands protected Krepost Sveaborg from the sea, while fortified lines constructed around Helsinki were intended to stop any attacks on land. The primary coastal guns were 10 in (254 mm) model 1891 guns and 6 in (152 mm) model 1892 Canet guns. Older 11 in (279 mm) model 1877 guns were also used. In summer 1917 the fortress had two hundred coastal or anti-landing guns, of which 24 were 10-inch guns in six batteries, 16 were 6-inch Canet guns in four batteries and twelve were 11-inch guns in three batteries. The artillery used in land fortifications included older coastal guns, old fixed carriage guns and newer light field guns. In March 1917, Krepost Sveaborg had a total of 463 guns, although many of them were obsolescent. Krepost Sveaborg was still partly incomplete in 1917 when the February Revolution halted most of the construction work. Some further construction work was carried out during the remaining year, but all work halted during the October Revolution. Following the Finnish Declaration of Independence, parts of the land fortifications were used in the Finnish Civil War. The coastal fortifications were later taken over by Finland to protect Helsinki, while the land fortifications were mostly abandoned and disarmed.
The Volinsky Lifeguard Regiment, more correctly translated as the Volhynian Life-Guards Regiment, was a Russian Imperial Guard infantry regiment. Created out of a single battalion of Finnish Guard Regiment in 1817, the regiment took part in the Polish-Russian War of 1830–1831, the Crimean War, the January Uprising of 1863 and the First World War.
Agnes Elvira Maria Willman was a Finnish playwright, journalist and a revolutionary socialist who was one of the most prominent women of the early Finnish labour movement. Willman is also considered as the first female working-class writer in Finland, despite coming from a bourgeois background. After the 1918 Finnish Civil War, Willman and her husband, Voitto Eloranta fled to the Soviet Russia. They were both later accused of being involved with the Kuusinen Club Incident, a murder of eight Finnish communists. Eloranta was executed in 1922 and Willman in 1925.
Sergei Anatoljevich Tsion was an Imperial Russian Army captain who was one of the leaders of the Sveaborg Rebellion in 1906.
Sveaborg garrison army mutineers
Imperial Russian Army 
Russian Imperial Navy Baltic Fleet 
Defense Corps 
