Actions against Croats were smaller in scale but similar in action . In the summer of 1941 , Trubar , Bosansko Grahovo and Krnjeuša were the sites of the first massacres and other attacks against ethnic Croats in the southwestern Bosnian Krajina . In early October 1942 in the village of Gata near Split , an estimated one hundred people were killed and many homes burnt purportedly as reprisal for the destruction of some roads in the area and carried out on the Italians ' account . In that same October , formations under the command of Petar Baćović and Dobroslav Jevđević , who were participating in the Italian Operation Alfa in the area of Prozor , massacred over five hundred Croats and Muslims and burnt numerous villages . Baćović noted that " Our Chetniks killed all men 15 years of age or older . ... Seventeen villages were burned to the ground . " Mario Roatta , commander of the Italian Second Army , objected to these " massive slaughters " of noncombatant civilians and threatened to halt Italian aid to the Chetniks if they did not end
Trubar
Trubar massacre
Chetniks