Invasion of PolandThe Invasion of Poland, also known as the September Campaign, Polish Campaign, War of Poland of 1939, and Polish Defencive War of 1939 (1 September – 6 October 1939), was a joint attack on the Republic of Poland by Nazi Germany, the Slovak Republic, and the Soviet Union; which marked the beginning of World War II. The German invasion began on 1 September 1939, one week after the signing of the Molotov–Ribbentrop Pact between Germany and the Soviet Union, and one day after the Supreme Soviet of the Soviet Union had approved the pact.
World War IIWorld War II or the Second World War, often abbreviated as WWII or WW2, was a global conflict lasting from 1939 to 1945. The vast majority of the world's countries, including all of the great powers, fought as part of two opposing military alliances: the Allies and the Axis. Many participants threw their economic, industrial, and scientific capabilities behind this total war, blurring the distinction between civilian and military resources.
PomeraniaPomerania (Pomorze; Pommern; Kashubian: Pòmòrskô; Pommern) is a historical region on the southern shore of the Baltic Sea in Central Europe, split between Poland and Germany. The western part of Pomerania belongs to the German states of Mecklenburg-Western Pomerania and Brandenburg, while the eastern part belongs to the West Pomeranian, Pomeranian and Kuyavian-Pomeranian voivodeships of Poland.
PrussiaPrussia (ˈprʌʃə; Preußen, ˈpʁɔʏsn̩, Old Prussian: Prūsa or Prūsija) was a German state located on most of the North European Plain, also occupying southern and eastern regions. It formed the German Empire when it united the German states in 1871. It was de facto dissolved by an emergency decree transferring powers of the Prussian government to German Chancellor Franz von Papen in 1932 and de jure by an Allied decree in 1947. For centuries, the House of Hohenzollern ruled Prussia, expanding its size with the Prussian Army.
PomereliaPomerelia, also known as Eastern Pomerania, Vistula Pomerania, prior to World War II also known as Polish Pomerania, is a historical sub-region of Pomerania on the southern shore of the Baltic Sea. The designation of Gdańsk Pomerania, is largely coextensive with Pomerelia, but slightly narrower, as it does not cover the Chełmno Land (including the Michałów Land). Its largest and most important city is Gdańsk. Since 1999, the region has formed the core of the Pomeranian Voivodeship.
Treaty of VersaillesThe Treaty of Versailles was a peace treaty signed on 28 June 1919. As the most important treaty of World War I, it ended the state of war between Germany and most of the Allied Powers. It was signed in the Palace of Versailles, exactly five years after the assassination of Archduke Franz Ferdinand, which led to the war. The other Central Powers on the German side signed separate treaties. The United States never ratified the Versailles treaty and made a separate peace treaty with Germany.
ElblągElbląg (ˈɛlblɔŋk; Elbing; Elbings) is a city in the Warmian-Masurian Voivodeship, Poland, located in the eastern edge of the Żuławy region with 117,390 inhabitants, as of December 2021. It is the capital of Elbląg County. Elbląg is one of the oldest cities in the province. Its history dates back to 1237, when the Teutonic Order constructed their fortified stronghold on the banks of a nearby river. The castle subsequently served as the official seat of the Teutonic Order Masters.
KönigsbergKönigsberg (ˈkøːnɪçsbɛʁk, King's mountain) was the historic German and Prussian name of the city that is now Kaliningrad, Russia. It was founded in 1255 on the site of the small Old Prussian settlement Twangste by the Teutonic Knights during the Baltic Crusades. It was named in honour of King Ottokar II of Bohemia, who led a campaign against the pagan Old Prussians, a Baltic tribe. A Baltic port city, it successively became the capital of the State of the Teutonic Order, the Duchy of Prussia and the provinces of East Prussia and Prussia.
Free City of DanzigThe Free City of Danzig (Freie Stadt Danzig; Wolne Miasto Gdańsk) was a city-state under the protection of the League of Nations between 1920 and 1939, consisting of the Baltic Sea port of Danzig (now Gdańsk, Poland) and nearly 200 other small localities in the surrounding areas. The polity was created on 15 November 1920 in accordance with the terms of Article 100 (Section XI of Part III) of the 1919 Treaty of Versailles after the end of World War I. In line with the treaty provisions, the entity was established under the oversight of the League of Nations.
Potsdam AgreementThe Potsdam Agreement (Potsdamer Abkommen) was the agreement between three of the Allies of World War II: the United Kingdom, the United States, and the Soviet Union after the war ended in Europe on 1 August 1945 and it was published the next day. A product of the Potsdam Conference, it concerned the military occupation and reconstruction of Germany, its border, and the entire European Theatre of War territory. It also addressed Germany's demilitarisation, reparations, the prosecution of war criminals and the mass expulsion of ethnic Germans from various parts of Europe.
