Guilio Douhet's strategy primarily emphasizes what aspect of warfare?

Guilio Douhet's strategy primarily emphasizes the psychological impact of airstrikes as a pivotal element of warfare. He was a pioneering advocate for air power, promoting the idea that controlling the air is critical to achieving victory in war. Douhet believed that strategic bombing could demoralize the enemy and weaken their industrial and military capabilities without the need for ground troop invasions.

His theories suggested that attacking key infrastructure and civilian targets would not only disrupt the enemy's ability to fight but also instill fear and anxiety, leading to psychological effects that could compel a surrender or significantly decrease the enemy's resolve. This understanding of warfare marked a significant shift from traditional ground combat tactics to a broader conception that included psychological operations as a central component of military strategy.

The options that focus on defense, economic motives, or naval superiority do not encapsulate the essence of Douhet's theories, which distinctly position the offensive use of air power and its psychological ramifications at the forefront of modern warfare.