By early 1915, Mussolini had moved towards the nationalist position. He began arguing that Italy should conquer Trieste and Fiume, and expand its northeastern border to the Alps, following the ideals of Mazzini who called for a patriotic war to "secure Italy's natural frontiers of language and race". Mussolini also advocated waging a war of conquest in the Balkans and the Middle East, and his supporters began to call themselves "fascisti". He also started advocating for a "positive attitude" towards capitalism and capitalists, as part of his transition towards supporting class collaboration and an "Italy first" position.