The International Brigades were soldiers set up by the Communist International to assist the Popular Front government of the Second Spanish Republic during the Spanish Civil War. The organization existed for two years, from 1936 until 1938. It is estimated that during the entire war, between 40,000 and 59,000 members served in the International Brigades, including some 10,000 who died in combat. Beyond the Spanish Civil War, "International Brigades" is also sometimes used interchangeably with the term foreign legion in reference to military units comprising foreigners who volunteer to fight in the military of another state, often in times of war.
The Battle of Guadalajara saw the victory of the Spanish Republican Army and of the International Brigades over the Italian and Nationalist forces attempting to encircle Madrid during the Spanish Civil War. The Nationalist forces involved in the Battle of Guadalajara were primarily the Italian Corps of Volunteer Troops.
Luigi Longo, also known as Gallo, was an Italian communist politician and general secretary of the Italian Communist Party from 1964 to 1972. He was also the first foreigner to be awarded an Order of Lenin.
The Bersaglieri, singular Bersagliere, are a troop of marksmen in the Italian Army's infantry corps. They were originally created by General Alessandro Ferrero La Marmora on 18 June 1836 to serve in the Royal Sardinian Army, which later became the Royal Italian Army. They can be recognized by their distinctive wide-brimmed hats decorated with black western capercaillie feathers, which is worn with the dress uniform. The feathers are also applied to their combat helmets.
The Battle of Monte Pelado was an engagement of the Spanish Civil War fought on 28 August 1936. It was notable as the first major engagement of the Italian Republican volunteers of the Matteotti Battalion.
The International Brigades (IB) were volunteer military units of foreigners who fought on the side of the Second Spanish Republic during the Spanish Civil War. The number of combatant volunteers has been estimated at between 32,000–35,000, though with no more than about 20,000 active at any one time. A further 10,000 people probably participated in non-combatant roles and about 3,000–5,000 foreigners were members of CNT or POUM. They came from a claimed "53 nations" to fight against the Spanish Nationalist forces led by General Francisco Franco and assisted by German and Italian forces.
Raffaele Cadorna Jr. was an Italian general who fought during World War I and World War II. He is famous as one of the commanders of the Italian Resistance against German occupying forces in north Italy after 1943.
Randolfo Pacciardi was an Italian politician.
The "San Marco" Marine Brigade is an amphibious formation of the Italian Navy, has been brigade since 2013 but the amphibious corps existed since 1915, reorganizing the Navy Landing Force. It has its command in Brindisi. They are the marines of the Italian Navy.
The "Sixth of February" Battalion was a Franco-Belgian International Brigade battalion during the Spanish Civil War. The Battalion served in the XV and XIV International Brigades. It took its name from the date of 1934 anticipated right-wing putsch against the Popular Front in France which was purportedly defeated by various left-wing groups.
The Mazzini Society was an antifascist political association, formed on a democratic and republican basis, situating itself within the tradition of the Risorgimento, and created in the United States by Italian-American immigrants in the late 1930s. It was named after Giuseppe Mazzini, a leading figure of Italian reunification in the mid-19th century, who had worked from exile.
The Gastone Sozzi Centuria was a Communist unit raised in Barcelona by Italian and Catalan volunteers who, at the beginning of the Spanish Civil War, went to the defence of Madrid, besieged by the Rebel Army. The name of the unit was in honour of Italian communist Gastone Sozzi, assassinated in 1928 by Fascist Blackshirts.
The Italian partisan brigades were armed formations involved in the Italian resistance during the World War II.
The Brigate Garibaldi or Garibaldi Brigades were partisan units aligned with the Italian Communist Party active in the armed resistance against both German and Italian fascist forces during World War II.
The Brigate Osoppo-Friuli or Osoppo-Friuli Brigades were autonomous partisan formations founded in the headquarter of the Archbishop Seminary of Udine on 24 December 1943 by partisan volunteers of mixed ideologies, already active in Carnia and Friuli before the Badoglio Proclamation of 8 September. The partisans in this brigade adhered to various and often conflicting ideologies, including both secularism and Catholicism, as well as socialism and liberalism.
Aldo Garòsci was an Italian historian, socialist, anti-fascist activist-politician and, in his later professional career, a leading political journalist-commentator.
Valentino Babini was an Italian general during World War II. He was one Italy's foremost pioneers in tank warfare and among the most important tank commanders of the Royal Italian Army during the interwar period and the early stages of World War II; in 1940 he coined the motto of Italy's tank troops, Ferrea mole, ferreo cuore.
The anarchist brigades of the Italian Resistance were active during the Second World War, especially in central and northern Italy.
Ilio Barontini was an Italian Communist politician and guerrilla fighter. He notably fought in the Spanish Civil War and in the Italian resistance.
Kingdom of Italy 
Kingdom of Albania 
Spanish Republic 
International Brigades 
