The Czechoslovak Italian Legion was a legion of Czechoslovak volunteers formed late in World War I. The first formal Czechoslovak Volunteers Group () was formed in Italian prisoner-of-war camps in Santa Maria Capua Vetere,Dziak, Major Robert, Army of the Czech Republic, The Czechoslovak Legions in World War I, Thesis for Master of Military Studies, Marine Corps University (2012) near Naples and matured at Padula near Salerno. In January 1918, the headquarters of the 6th Italian Army finally agreed to form reconnaissance squadrons from Czechoslovak and Southern Slav volunteers. In September 1918, the 39th Regiment of the Czechoslovak Italian Legion was formed from those volunteer reconnaissance squadrons. The following regiments of Czechoslovak Italian Legion were formed in April and May 1918:

31st Regiment in Perugia (Col. Ciaffi) 32nd Regiment in Assisi 33rd Regiment in Foligno (Maj. Sagone) 34th Regiment in Spoleto (Col. Gambi) 35th Regiment was formed in October 1918 from new Czechoslovak prisoners of war in Italy

The Czechoslovak Italian Legion formed two divisions: VI. Division, which included 31st, 32nd, and 35th Regiments; and VII. Division, which included 33rd, 34th, and 39th Regiments. Their total strength was around 25,000 men. The Czechoslovak Italian Legion was commanded by General Andrea Graziani and later by General Luigi Piccione. After the war, the Legion was repatriated to Czechoslovakia in 1919 and most went to Slovakia to fight in the Hungarian–Czechoslovak War.

Background The Czechoslovak Legion in Italy was formed as a result of the efforts by Slovak leader Milan Rastislav Štefánik and Czech leaders Tomáš Masaryk and Edvard Beneš, who at the outbreak of World War I supported the idea wherein the Austro-Hungarian Empire should be broken up so that Czecho-Slovakia would become an independent country. These ideas led to the formation of the Czech Committee Abroad (in 1915). The Czech Committee Abroad then became the Czecho-Slovak National Council.Benes, Edvard, My War Memoirs, Translated by Paul Selver, Houghton Mifflin, 1928, pp. 81-83, 90.

Štefánik, who had become a French citizen in 1912 was one of thousands of expatriate Czechs and SlovaksAt that time about 10,000 Czechs and Slovaks were students or others living or working in France. See, Bullock, David, The Czech Legion 1914-20, Osprey (2009), p. 10. who volunteered for France when the war began, as early as August 1914.

A similar volunteer effort began in Russia. Under the leadership of Masaryk, expatriate Czechs asked the Russians to accept Czech and Slovak applicants into Russian Army in August 1914. They formed a distinct druzhina. At this time about 70,000 Czechs and Slovaks were living or working in Russia. The druzhina were deployed as reconnaissance units and also began a propaganda campaign to convince their fellow countrymen who had been conscripted into the Austro-Hungarian army to defect. Under Štefánik's guidance, large numbers of Czechs and Slovaks defected on the Russian front and formed the Czechoslovak Legion. These forces were later supplemented by recruitment of Czech and Slovak prisoners of war.

The members of the Czecho-Slovak Legion were also heavily influenced by the Sokol movement.(cs) Preclík, Vratislav. Masaryk a legie (Masaryk and legions), váz. kniha, book 219 pages, first issue vydalo nakladatelství Paris Karviná, Žižkova 2379 (734 01 Karvina, Czech Republic) ve spolupráci s Masarykovým demokratickým hnutím (in association with the Masaryk Democratic Movement, Prague), 2019, , pages 36 - 39, 41 - 42, 106 - 107, 111-112, 124–125, 128, 129, 132, 140–148, 184–209.

Czechoslovak Corps of Volunteers in Italy Before 1918 The Czechoslovak Legion in Italy arose under different circumstances than in France or Russia. First, there were only a small number of expatriate Czechs and Slovaks living in Italy. Second, the Italians were a late-comer to the World War, declaring war in May 1915 against Austro-Hungary (but not Germany until 28 August 1916). The Italians' main reason for entry was to annex Italian-speaking lands in Austria including territories in Istria and Dalmatia (Italian irredentism). These lands were also the home of Slavic peoples and thus there was some concern about supporting the Czechs and Slovaks (also Slavs) who supported the break-up of the Austro-Hungarian Empire. (At the conclusion of the war the State of Slovenes, Croats and Serbs (which later merged into Yugoslavia) was in fact created and led to conflict with the Italians.) There were, however, eventually, by 1916–17, a great number of enemy combatants as prisoners of war in Italy, who were Czechs and Slovaks. These individuals were to become the Legion.

Beginning in April 1916, on a political-diplomatic visit to Italy, Milan Štefánik's continued to advance the Czechoslovak cause (for independence), to establish a basis for its support and to activate mechanisms for the formation of a military force in support of the Allied troops. Because of the aforementioned geopolitical concerns, the Italians resisted the establishment of a Czechoslovak Legion. However, there were recurring incidents of Czech desertions that were being utilized by Italian army intelligence to aid the war effort. In 1916, Václav Pán aided the Italian 2nd Army. Later that year Jaromír Vondráček (a company commander) was crucial to Italian war successes by the 3rd Army. .Cornwall, Mark, The Undermining of Austria-Hungary: The Battle for Hearts and Minds, Basingstoke, Macmillan (2000), p.126 That summer, an event took place that would really begin to change some minds in Italy about a Czechoslovak Legion.

On 11 August 1916 a Czech officer, František Hlaváček, deserted his post in the Isonzo during the Battle of Gorizia, and demonstrated to the Italian field commanders and intelligence officers, the usefulness and viability of a Czech Legion. Hlaváček had, crucially, information about an offensive in the planning stages. His information concerned the Bainsizza Plateau. Initially, nothing was done about the information and Hlaváček was sent to an officers' prison camp near Bibbiena. Then several months later in April 1917, he was recalled to General Pietro Badoglio's 2nd Army Headquarters in Cormons to detail the plan. Although nothing much came about because of the plan at that time, the local operation which did take place, engendered a reaction by the Austro-Hungarian troops there wherein an entire battalion of Czech troops deserted to the Italians. Soon enough Italian officers were believers that a full scale offensive at Bainsizza was planned and, during this period, Hlaváček became the first prisoner of war actually freed from captivity. The attack on Bainsizza was a main objective of the Eleventh Battle of the Isonzo, an Italian victory. Hlaváček was awarded the military cross and later lobbied on behalf of establishing a Czechoslovak Legion in Italy.Cornwall (2000), pp.126-127

The reaction of the Italian politicians was now turning positive and on 11 January 1917 deputy Pietro Lanza, prince of Scalea, with the patronage of the Dante Alighieri association, formed the "Italian Committee for Czech-Slovak independence".

Thus Czechoslovak scouts (or intelligence operatives) entered the fight as a part of the Italian forces as the Esploratori Cecoslovacchi.Hanzal, W., Il 39° Reggimento esploratori cecoslovacco sul fronte italiano, Roma: Stato Maggiore dell'Esercito-Ufficio Storico, 2009, pp. 16-17. As in Russia, these units were also tasked with a propaganda campaign to convince their fellow countrymen, who had been conscripted into the Austro-Hungarian army for a cause they did not support, to defect.

By the beginning of 1917, there were substantial numbers of Czech and Slovak prisoners of war in Italy. In late 1916, Italy had begun creation of internment camps according to nationality. One of the first camps designated for Czechs and Slovaks was Santa Maria Capua Vetere, near Naples. Here the Czechoslovak Corps of Volunteers was created under the leadership of Jan Čapek, a Sokol leader. Another camp was located at the Certosa di Padula near Salerno and this became the internment point for more than 10,000 Czech and Slovak prisoners in 1916-1918.http://www.buongiornoslovacchia.sk/index.php/archives/33497 Edvard Benes visited the camp in September 1917. This prisoner of war camp became the center of the Czechoslovak volunteers.

In this regard, in 1917, these efforts of the Czech deserters began to bear other fruit. The following (although instigated by a Slovene, involved numerous Czechs from his unit) is instructive and was reported in the Italian newspaper La Stampa (translated from Italian):Dalla Slovenia con Ardore" by Demetrio Volcic La Stampa. (in Italian) 31 January 2011 … from Austro-Hungarian captain Ljudevit Pivko, of Slovenian ethnicity… In Trentino, in 1917, Pivko and the others began to probe the front line, and at the risk of their lives reached the Italian trenches to meet "Captain Finzi" (the cover name for Major Pettorelli Lalatta), an officer in the secret services. The Austrians explained that they wanted to pick up apples abandoned in no man's land and avoid the danger of friendly fire. In the morning the small group of officers returned to their lines with baskets of apples for everyone. Pivko met Finzi several times and together they designed and signed a desertion agreement. … Pivko's plan was to deliver to Italy the Bosnian battalion of the Landsturm, stationed in Carzano, after having convinced all the soldiers (including many Czechs) of that group to comply: thus allowing the Italians to penetrate the Austro-Hungarian lines, breaking through the Valsugana to Trento. A whole army of the Empire would thus remain isolated from the national territory and in Carzano it would have been possible for a great and decisive battle. But this incredible opportunity was lost due to delays, distrust and hesitation of the Italian army. The attempt was suspended. Thus, in the autumn of 1917, Italy collected a substantial number of [Czech and] Slovenian ethnic refugees, including Pivko, who were not allowed to form a real foreign legion on the French model. The Slovenian defectors brought Italian uniforms with a special mark and were assigned to tasks ranging from the recognition of the territory to propaganda among the cross-border populations. From a formal point of view they were prisoners of war with a special status: free to move, use the railways and receive a financial contribution.

These Esploratori units were limited to intelligence, propaganda and other defensive actions, and they would later become the 39th Regiment of the Czechoslovak Italian Legion.Bullock, The Czech Legion 1914-20

Then the massive Italian defeat at the Battle of Caporetto in late 1917 altered the whole dynamic in Italy for the Czechs and Slovaks.

After Caporetto, the Czechoslovak Legion of Italy Is Established On 21 April 1918 the Prime Minister of the Kingdom of Italy Vittorio Emanuele Orlando signed, together with the Minister of War Vittorio Italico Zupelli and Colonel Štefánik, representing the Czechoslovak National Council, an agreement that created the Italian Czechoslovak Legion. During the negotiations, General Štefánik told the Prime Minister: "I do not request anything from you, but to allow our people to die for their ideals."Dziak, The Czechoslovak Legions in World War I Štefánik then received, on 24 May from Orlando, the Legion colors in a solemn ceremony at the Altare della Patria in Rome.

From the prisoner work battalions, four Infantry Regiments were formed, consisting of 13,653 soldiers and 489 officers, which then merged into two Brigades, taking the name of the Sixth Division Czechoslovak. They were placed under the command of General Andrea Graziani.