Njegovan. Notable battles of World War I that included Croatian troops: Serbian Campaign (World War I) (1914) Adriatic Campaign of World War I (1914–1918) Battle of Galicia (1914) Brusilov Offensive (1916) Battle of Soča (1915) Battle of Caporetto (1917) Bombardment of Ancona (1915) Battle of the Piave River (1918) Battle of Vittorio Veneto (1918) The end of World War I was followed by the dissolution of the Austro-Hungarian monarchy and the formation of new national states. The State of Slovenes, Croats and Serbs was formed from the southernmost parts of the Austria-Hungary but it lasted for only a month. After it was clear that Austria-Hungary had lost World War I, the Austrian government decided to give much of the Austro-Hungarian Navy fleet, to the newly formed State of Slovenes, Croats and Serbs. This move would have avoided handing the fleet to the Allies, since the new state had declared neutrality. Soon, the Fleet was attacked and dismembered by the Italian Regia Marina and the flagship SMS Viribus Unitis was sunk along with his captain and commander of Navy of the newly formed state, admiral Janko Vuković. World War I aftermath 1918 occupation of Međimurje Interwar period Throughout the interwar period, the Royal Yugoslav Army was mostly Serb dominated institution, which discouraged Croatians from joining it. Major issue was Serbian tradition of corporal punishment, which was unknown in former Austro-Hungarian lands and which caused much resistance when introduced. Former Austro-Hungarian officers were ofter regarded as second-class officers, and often found themselves subordinated to much younger Serbs officers who were completely uneducated. Croatian officers often felt offended for being attacked on national basis. In certain cases, officers were put to jail for not knowing how to write in Serbian cyrilic script. This ethnic inequality in armed forces caused frequent desertions and occasional rebellions among Croatians in the army. Prior to World War II out of 165 generals only two were Croats, two were Slovenes, the rest were Serbs. World War II As Axis forces overran Kingdom of Yugoslavia in April War of 1941, Croatian fascists Ustaše under Gernan-Italian sponsorship arrived to Zagreb and proclaimed Independant State of Croatia (NDH). Almost immediately, Ustaše started a campaign of mass terror (and genocide) against large Serb population in NDH, as well as Jews, Romani and anti-fascist Croats. However when Hitler started his Operation Barbarossa in June 1941, Croatian communists responded by launcing an uprising, thus