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.
Saint PetersburgSaint Petersburg, formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991; see below), is the second-largest city in Russia after Moscow. It is situated on the Neva River, at the head of the Gulf of Finland on the Baltic Sea. The city had a population of roughly 5.6 million residents as of 2021. Saint Petersburg is the fourth-most populous city in Europe, the most populous city on the Baltic Sea, and the world's northernmost city of more than 1 million residents.
HanoverHanover (ˈhænoʊvər,_-nəv- ; Hannover haˈnoːfɐ; Hannober) is the capital and largest city of the German state of Lower Saxony. Its 535,932 (2021) inhabitants make it the 13th-largest city in Germany as well as the fourth-largest city in Northern Germany after Berlin, Hamburg and Bremen. Hanover's urban area comprises the towns of Garbsen, Langenhagen and Laatzen and has a population of about 791,000 (2018). The Hanover Region has approximately 1.16 million inhabitants (2019).
Nagoya([na̠ɡo̞ja̠]) naꜜɡoja) is the largest city in the Chūbu region, the fourth-most populous city and third most populous urban area in Japan, with a population of 2.3 million in 2020. It is one of the three major cities of Japan (Tokyo-Osaka-Nagoya). Located on the Pacific coast in central Honshu, it is the capital and the most populous city of Aichi Prefecture, and is one of Japan's major ports along with those of Tokyo, Osaka, Kobe, Yokohama, and Chiba.
HamburgHamburg (ˈhambʊʁk, ˈhambʊɪ̯ç; Hamborg ˈhambɔːç), officially the Free and Hanseatic City of Hamburg (Freie und Hansestadt Hamburg; Friee un Hansestadt Hamborg), is the second-largest city in Germany after Berlin, as well as the overall 8th-largest city and largest non-capital city within the European Union with a population of over 1.9 million. Hamburg's urban area has a population of around 2.5 million and is part of the Hamburg Metropolitan Region, which has a population of over 5.1 million people in total.
Russian invasion of UkraineOn 24 February 2022, in an escalation of the Russo-Ukrainian War which began in 2014. The invasion has killed tens of thousands on both sides. Russian forces have been responsible for mass civilian casualties and for torturing captured Ukrainian soldiers. By June 2022, about 8 million Ukrainians had been internally displaced. More than 8.2 million had fled the country by May 2023, becoming Europe's largest refugee crisis since World War II. Extensive environmental damage, widely described as ecocide, contributed to food crises worldwide.
DresdenDresden (ˈdrɛzdən, ˈdʁeːsdn̩; Upper Saxon: Dräsdn; Drježdźany) is the capital city of the German state of Saxony and its second most populous city after Leipzig. It is the 12th most populous city of Germany, the fourth largest by area (after Berlin, Hamburg and Cologne), and the third most populous city in the area of former East Germany, after Berlin and Leipzig. Dresden's urban area comprises the towns of Freital, Pirna, Radebeul, Meissen, Coswig, Radeberg and Heidenau and has around 790,000 inhabitants.
LeipzigLeipzig (ˈlaɪpsɪɡ,_-sɪx , ˈlaɪptsɪç; Upper Saxon: Leibz'sch) is the most populous city in the German state of Saxony. Leipzig's population of 624,689 inhabitants (1.1 million in the larger urban zone) as of 2022 places the city as Germany's eighth most populous, as well as the second most populous city in the area of the former East Germany after (East) Berlin. Together with Halle (Saale), the city forms the polycentric Leipzig-Halle Conurbation. Between the two cities (in Schkeuditz) lies Leipzig/Halle Airport.