The article deals with a complex of issues connected with the campaign waged by the Macedonian expeditionary corps in Asia Minor in 336-335 BC. The author clears up the aims set for the advance-guard, its command structure, strength and composition. He also describes the relevant military operations and reveals the reasons both for the Macedonians' successes in 336 and their failures in 335. The idea is argued that despite the final failures, it is hardly possible to say that the campaign the expeditionary corps conducted ended in its total defeat. Besides, it is noted that those military operations had major significance for Alexander's campaign in Asia Minor in 334, because a number of preconditions for its full success had been created right in their course.