Answer
The split between the Chetniks and Partisans arose due to contrasting strategies and ideological divergences. The Chetniks, led by Draža Mihailović, adopted a cautious approach, prioritizing the preservation of their forces for a post-war takeover. In contrast, the Partisans, under Josip Broz Tito's leadership, pursued an aggressive guerrilla campaign against the Axis powers.