 Complete the following phrase:  In a directive letter dated 30 July 1942, Ostojić urged all Chetnik commanders to develop the strongest possible oral and written propaganda. He stated that, the people must be persuaded that the Chetniks are their only friends and that it is from them that they can expect freedom and a happy life and instructed the Chetniks to work day and night and maintain the spirit of the people. He wrote, the hour of freedom is near. Allied aid for the Chetniks is assured, and the whole world is admiring them. In August, he launched a counter-attack against Ustaše troops returning to Foča as the Italians withdrew their garrisons from the hinterland. The Chetniks feared the Ustaše were about to unleash 