One major Chetnik collaboration with the Axis took place during the "Battle of the Neretva", the final phase of "Case White", known in Yugoslav historiography as the "Fourth Enemy Offensive". In 1942, Partisans forces were on the rise, having established large liberated territories within Bosnia and Herzegovina. Chetnik forces, partially because of their collaboration with the Italian occupation, were also gaining in strength, however, but were no match to the Partisans and required Axis logistical support to attack the liberated territories. In light of the changing strategic situation, Hitler and the German high command decided to disarm the Chetniks and destroy the Partisans for good. In spite of Hitler's insistence, Italian forces in the end refused to disarm the Chetniks (thus rendering that course of action impossible), under the justification that the Italian occupation forces could not afford to lose the Chetniks as allies in their maintenance of the occupation.