The Chetniks ( mostly Serbs , but also Montenegrins and others ) pursued genocide against Muslims , Croats and Pro-Partisan Serbs , and the Italian occupation authorities pursued violence Violence and ethnic cleansing ( Italianization ) against Slovenes and Croats .

The Montenegrins allied Collaboration themselves with Herzegovians .

In 1877 , Montenegrins fought Hostile_encounter heavy battles Hostile_encounter along the borders of Herzegovina and Albania .

The war Hostile_encounter ended Process_end when the Ottomans signed Sign_agreement a truce with the Montenegrins at Edirne on 13 January 1878 .