General Mitchell is known for advocating what form of attack during warfare?

General Billy Mitchell is renowned for his pioneering advocacy of strategic bombardment as a method of warfare. He emphasized the importance of air power in achieving military objectives, particularly in targeting enemy infrastructure and resources from the air, which he believed could decisively influence the outcome of conflicts. This approach proposed that air attacks on key military and industrial targets could weaken the enemy's capabilities, thereby preventing prolonged ground battles and reducing casualties.

Mitchell's theories about the effectiveness and efficiency of air force operations were a significant departure from traditional military strategies that heavily relied on ground troops and naval engagements. His ideas laid the groundwork for future air campaigns, influencing military doctrine well beyond his time. This approach was crucial in shaping modern air power strategies, emphasizing that control of the air was vital to overall military success.

Other options, like guerrilla tactics, full-scale ground invasions, and naval blockades, represent different strategies that do not reflect Mitchell's emphasis on the air power focus he championed. Each of those strategies involves different operational concepts and utilization of military branches that Mitchell argued were less effective without the integration of comprehensive aerial operations.