Polish–Soviet WarThe Polish–Soviet War (late autumn 1918 / 14 February 1919 – 18 March 1921) was fought primarily between the Second Polish Republic and the Russian Soviet Federative Socialist Republic in the aftermath of World War I and the Russian Revolution, on territories which were formerly held by the Russian Empire and the Austro-Hungarian Empire.
Soviet westward offensive of 1918–1919The Soviet westward offensive of 1918–1919 was part of the campaign by Soviet Russia into areas abandoned by the Ober Ost garrisons that were being withdrawn to Germany following that country's defeat in World War I. The initially successful offensive against the Republic of Estonia ignited the Estonian War of Independence which ended with the Soviet recognition of Estonia. Similarly, the campaigns against the Republic of Latvia and Republic of Lithuania ultimately failed, resulting in the Latvian–Soviet Peace Treaty and Soviet–Lithuanian Peace Treaty respectively.
CourlandCourland is one of the Historical Latvian Lands in western Latvia. The name probably derives from kur̃t, from kwer- (to do, to build). Courland's largest city is Liepāja, which is the third largest city in Latvia. The regions of Semigallia and Selonia are sometimes considered as part of Courland as they were formerly held by the same duke. Situated in western Latvia, Courland roughly corresponds to the former Latvian districts of Kuldīga, Liepāja, Saldus, Talsi, Tukums and Ventspils.
Ukrainian War of IndependenceThe Ukrainian War of Independence was a military conflict involving many parties from 1917 to 1921 which saw the establishment and development of an independent Ukrainian republic, most of which was later absorbed into the Soviet Union as the Ukrainian Soviet Socialist Republic of 1922–1991. The war consisted of military conflicts between different governmental, political and military forces. Belligerents included Ukrainian nationalists, Ukrainian anarchists, the forces of Germany and Austria-Hungary, the White Russian Volunteer Army, and Second Polish Republic forces.
World War IWorld War I or the First World War, often abbreviated as WWI or WW1, known contemporaneously as the Great War, was a major global conflict lasting from 1914 to 1918. It was fought between two coalitions, the Allies and the Central Powers. Fighting took place throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia. The first decade of the 20th century saw increasing diplomatic tension between the European great powers.
EstoniaEstonia, officially the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, and to the east by Lake Peipus and Russia. The territory of Estonia consists of the mainland, the larger islands of Saaremaa and Hiiumaa, and over 2,200 other islands and islets on the eastern coast of the Baltic Sea, covering a total area of .