Italian resistance movement: In Turin, despite the harsh repressive measures adopted by Nazi-fascists, a great pre-insurrectional strike begins.

The Italian Resistance, or simply La Resistenza, consisted of all the Italian resistance groups who fought the occupying forces of Nazi Germany and the fascist collaborationists of the Italian Social Republic during the Second World War in Italy from 1943 to 1945. As a diverse anti-fascist and anti-Nazist movement and organisation, the Resistenza opposed Nazi Germany and its Fascist puppet state regime, the Italian Social Republic, which the Germans created following the Nazi German invasion and military occupation of Italy by the Wehrmacht and the Waffen-SS from 8 September 1943 until 25 April 1945.

Turin is a city and an important business and cultural centre in northern Italy. It is the capital city of Piedmont and of the Metropolitan City of Turin, and was the first Italian capital from 1861 to 1865. The city is mainly on the western bank of the River Po, below its Susa Valley, and is surrounded by the western Alpine arch and Superga hill. The population of the city proper is 856,745 as of 2025, while the population of the urban area is estimated by Eurostat to be 1.7 million inhabitants. The Turin metropolitan area is estimated by the OECD to have a population of 2.2 million.

April 18 is the 108th day of the year in the Gregorian calendar; 257 days remain until the end of the year.