Perhinek was one of former military officers of the Royal Yugoslav Army who lived in Berane. He was a chief of staff of Kom detachment in Berane which was to invade Albania in case of Axis invasion of Yugoslavia. When Axis forces began with invasion of Yugoslavia his forces began with invasion of Albania until an order to withdraw prevented further penetration into territory of Albania. In June 1941 Perhinek organized a conference of the former military officers of the Yugoslav Army in Berane, including Cemović and Joksimović. During the Uprising in Montenegro he participated in the capture of Italian-held Berane.