Many aspects of the remarkable career of the intellectually inclined Roman Catholic priest FC Kolbe of Cape Town have been documented, but little has been published about his opposition to British imperialism during the Second Anglo-Boer War. Particularly in his capacity as the founding editor of the South African Catholic Magazine he sought to influence popular opinion both before and after the eruption of hostilities in October 1899. The present article focuses on the expression of his position in that journal and compares Kolbe's stance with those taken by the editors of certain other religious periodicals and the secular press in the Cape. Also considered is Kolbe's involvement in the editing of Albert Cartwright's anti-war newspaper The South African News, especially his opposition to martial law. The secular reasons for Kolbe's objections to the war are evident; the theological, meta-ethical underpinnings are only obliquely implied in his discourses.