January - The USSR publishes a notice of the conclusion of a new Soviet-German trade agreement "for the period from February 11, 1941 to August 1, 1942."
January - the first reports of the beginning of the introduction of German troops in Bulgaria are published in the USSR; TARS claimed that this was being done "without the knowledge and consent of the USSR."
January 30 - British 8th Army defeats Italian forces and occupies the city of Derna in Egypt.
February 1 - All central newspapers of the USSR published a detailed report on Hitler's speech on January 30.
March 11 - The United States begins providing military supplies to allies of the anti-Hitler coalition.
April 6 - German-Italian troops attack Yugoslavia.
April 17 - Yugoslavia capitulates in World War II.
June 13 - Mass deportations begin in the Moldavian SSR; according to official figures, about 200,000 people were deported and repressed during several waves of deportation from Moldova
June 14 - About 15,000 people, representing mainly the country's political and economic elite, were deported from Latvia to Siberia.
June 22 - German troops begin crossing the USSR. Germany's war against the USSR began. Germany and Italy declared war on the USSR.
June 24 - In three prisons in Lviv, NKVD officers shot 2,072 people.
June 30 - Units of the 17th Wehrmacht Army occupy the city of Lviv
June 30 - The Act of Restoration of the Ukrainian State and Establishment of the Ukrainian State Board is proclaimed in Lviv.
July 7 - Mass murder of Polish scientists and teachers in Lviv (see Murders of Polish professors).
July 17 - By order of Hitler, Galicia came under the jurisdiction of the General Governorate as a separate district of Galicia.
August 18 - NKVD officers blow up the Dnieper HPP, killing thousands of coastal residents and Red Army soldiers
September 1 - an order came into force on the issuance of vodka to Red Army soldiers on the front line of the "People's Commissar's Hundred Grams"
September 15 - Nazi mass arrests of OUN-Bandera members begin throughout Ukraine and in exile.
September 24 - Enkavedists blow up Ukraine's first skyscraper, the Ginzburg Skyscraper.
In 1941, the events of the film "The First Avenger" take place.