Information: - World WarII (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the world's nationsincluding all of the great powerseventually forming two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. In a state of "total war", the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, erasing the distinction between civilian and military resources. Marked by mass deaths of civilians, including the Holocaust (in which approximately 11 million people were killed) and the strategic bombing of industrial and population centres (in which approximately one million were killed, and which included the atomic bombings of Hiroshima and Nagasaki), it resulted in an estimated 50 million to 85 million fatalities. These made World WarII the deadliest conflict in human history. - The House of Hesse ( German : Haus Hessen ) is a European royal dynasty from the region of Hesse , originally and still formally the House of Brabant ( or House of Reginar ) . - The Rhine (, , ) is a European river that begins in the Swiss canton of Graubunden in the southeastern Swiss Alps, forms part of the Swiss-Austrian, Swiss-Liechtenstein, Swiss-German and then the Franco-German border, then flows through the Rhineland and eventually empties into the North Sea in the Netherlands. The largest city on the river Rhine is Cologne, Germany, with a population of more than 1,050,000 people. It is the second-longest river in Central and Western Europe (after the Danube), at about , with an average discharge of about . - Deutsches Reich was the official name for the German nation state from 1871 to 1943 in the German language. It translates literally to "German Empire", with a context approximating that of "German Realm". From 1943 to 1945, the official name was but not formally proclaimed Grodeutsches Reich ("Great German Reich") on account of the new territories annexed into the state's administration during the Second World War. - Wiesbaden is a city in central western Germany and the capital of the federal state of Hesse. In July 2016, it had about 288,000 inhabitants, plus approximately 19,000 United States citizens (mostly associated with the United States Army). The Wiesbaden urban area is home to approx. 560,000 people. - Hesse or Hessia (, Hessian dialect: "Hesse" ) is a federal state ("Land") of the Federal Republic of Germany, with just over six million inhabitants. The state capital is Wiesbaden; the largest city is Frankfurt am Main. Until the formation of the German Reich in 1871, Hesse was an independent country ruled by a Grand Duke (Grand Duchy of Hesse). Due to divisions after World War II, the modern federal state does not cover the entire cultural region of Hesse which includes both the State of Hesse and the area known as Rhenish Hesse (Rheinhessen) in the neighbouring state of Rhineland-Palatinate. - The Grand Duchy of Hesse and by Rhine, or the Grand Duchy of Hesse between 1806 and 1816, was an independent country and member state of the German Confederation as of 1806, when the Landgraviate of Hesse-Darmstadt was elevated to a Grand Duchy which it remained until 1918, when the monarchy was overthrown. Hesse lost its independence when it joined the German Empire in 1871. Before 1866, its northern neighbour was its former sister Landgraviate, since 1803 an Electorate, of Hesse-Kassel for this reason, this state was sometimes colloquially known as Hesse-Darmstadt. - Rhineland-Palatinate (German: "Rheinland-Pfalz") is one of the 16 states (German: "Lander", lit. "countries" however better translated as "state") of the Federal Republic of Germany. It has an area of and about four million inhabitants. Its state capital is Mainz. Rhineland-Palatinate is located in western Germany and borders Belgium, Luxembourg and France, and the German states of North Rhine-Westphalia, Hesse, Baden-Wurttemberg and Saarland. What entity does 'house of hesse' has the relation 'country' with?
german empire