Giulio Douhet

Giulio Douhet
Born	Caserta, Campania, Italy
Died	15 February 1930(1930-02-15) (aged 60) Rome, Italy
Occupation(s)	Military general, military theorist
Years active	Late 19th century–1920s
Known for	Theorist in air power; advocacy of strategic bombing; author of The Command of the Air

Giulio Douhet (30 May 1869 – 15 February 1930) was an Italian general and a prominent theorist in the field of air power. He played a significant role in advocating strategic bombing during aerial warfare. His contemporaries included notable air warfare proponents such as Walther Wever, Billy Mitchell, and Hugh Trenchard.

In his seminal 1921 publication, The Command of the Air, Douhet asserted that strategic bombing—particularly attacks aimed at civilian populations and critical infrastructure—had the potential to undermine a nation’s resolve to continue fighting. He maintained that by delivering sufficient terror and devastation from the skies, civilian morale would collapse, compelling enemy governments to surrender.

Although Douhet’s ideas were highly influential, debates persist regarding the practical effectiveness of his proposed strategies.

Biography

Born in Caserta, Campania, Italy, into a family of Savoyard exiles who relocated following the transfer of Savoy to France, Douhet attended the Military Academy of Modena and was commissioned into the Italian Army's artillery branch in 1882. He furthered his education at the Polytechnic Institute in Turin, focusing on science and engineering.

After being assigned to the General Staff in the early 20th century, Douhet published lectures addressing military mechanization. With Italy’s introduction of dirigibles followed by fixed-wing aircraft, he quickly grasped their strategic military value. Douhet warned against subordinating air power to ground commanders and championed establishing an independent air force led by aviators. Collaborating with aircraft engineer Gianni Caproni, he promoted air power’s benefits throughout subsequent years.

During Italy’s 1911 conflict with the Ottoman Empire over Libya, aircraft were employed for reconnaissance, transport, artillery spotting, and limited bombing missions for the first time. Douhet authored a report recommending high-altitude bombing as a primary function for aircraft. In 1912, he took command of the Italian aviation battalion in Turin and composed Rules for the Use of Airplanes in War (Regole per l'uso degli aeroplani in guerra), one of the earliest doctrinal manuals on aerial warfare. However, his outspoken advocacy for air power was considered radical; after ordering construction of Caproni bombers without official approval, he was reassigned to infantry duty.

With the outbreak of World War I, Douhet urged Italy to rapidly expand its military capabilities, emphasizing aircraft production. He famously stated that securing "command of the air" would render an adversary "harmless". Upon Italy’s entry into the war in 1915, he was dismayed by the army's lack of preparedness and inefficiency. Douhet proposed a fleet of 500 bombers capable of delivering 125 tons of bombs daily as a means to break the stalemate against Austria but was largely ignored. He persistently criticized military leadership through correspondence with superiors and government officials while advocating for an air power-centered strategy. As a result, he was court-martialed and imprisoned for one year after submitting a memorandum critical of military commanders to the cabinet.

From prison, Douhet continued to write extensively on air power theory, completing a novel on the subject and proposing a large Allied aerial fleet in communications with government ministers. Following the catastrophic Battle of Caporetto in 1917, he was released and reinstated. In 1918, Douhet was appointed head of the Italian Central Aeronautic Bureau.

Cleared of charges in 1920 and promoted to general in 1921, he published his influential treatise on strategic bombing that same year before retiring from active service. Apart from briefly leading aviation under Benito Mussolini’s government in 1922, Douhet devoted much of his remaining years to developing air power theory.

He passed away due to a heart attack in 1930 in Rome, Italy.

Aerial strategy

File:Douhet.JPG

Douhet's former residence in Rome as it appears today

In his work, Douhet contended that air power represented a revolutionary force due to its ability to operate within the third dimension. Aircraft could bypass ground forces, which consequently became less significant. Because the sky's vast expanse rendered defense nearly unfeasible, offensive action was the core of air power. Effective defense depended solely on a strong offense. An air force capable of securing air supremacy by annihilating the enemy’s aerial units through bombing would condemn its adversary to relentless attack. Achieving control of the skies equated to victory.

Douhet emphasized the psychological impact of bombing on morale. He argued that air power could undermine a nation’s resolve by targeting its "vital centers." Traditional armies were rendered obsolete because aircraft could circumvent them and strike government, military, and industrial hubs without opposition—a concept later summarized as "The bomber will always get through." Central to this approach was precise target selection, which Douhet believed would distinguish competent air commanders. Although specific targets would shift depending on circumstances, he categorized five primary target types: industry, transportation networks, communications, government institutions, and "the will of the people."

The final category held particular significance for Douhet, who was a proponent of total war.

The principal framework outlined in his writings—known as the Douhet model—remains influential in discussions about air power application and bombing strategies. This model is founded on the premise that inflicting severe damage through aerial bombardment can break civilian morale. Such demoralization would destabilize societal support for resistance and compel populations to pressure their governments into surrender. According to this logic, subjecting large civilian populations to widespread destruction or shortages of essential goods would erode their will to continue conflict. By saturating enemy civilian centers with bombs, Douhet asserted that warfare would become so devastating that ordinary citizens would revolt against their leaders, overthrow them, and seek peace.

Douhet’s focus on strategic offense led him to underestimate the value of air defense or close support for ground forces. In the second edition of The Command of the Air, he dismissed such roles as "useless, superfluous and harmful." He advocated for an autonomous air force primarily equipped with long-range bombers capable of carrying heavy payloads. While he considered bomber interception improbable, he allowed for escort fighters to protect bombers from enemy interceptors. Precision in bombing was deemed unnecessary at the tactical level; instead, he recommended deploying three bomb types rapidly in sequence: explosives to demolish targets, incendiaries to ignite wreckage, and poison gas to hinder firefighting and rescue efforts.

According to Douhet, the entire civilian population was effectively on the front lines during an air war and could be terrorized through urban bombardment. In his book The War of 19--, he depicted a hypothetical conflict between Germany and a Franco-Belgian coalition where Germany conducted extensive terror bombing campaigns that devastated cities before opposing armies could fully mobilize. Due to the horrific nature of bombing, Douhet believed wars would be brief; once one side lost control of the air, it would surrender rather than endure continued aerial assault. Consequently, enemy air forces became the primary target since a decisive victory in this domain would accelerate the conflict’s conclusion.

Critical reception

While the initial feedback for The Command of the Air was relatively subdued, the publication of its second edition provoked strong criticism from Douhet's contemporaries in the military, especially those serving in the navy and army branches. His vision, often described as catastrophic, captivated public interest. However, his strategic bombing concepts remained unverified for two decades, during which it became evident that he had significantly underestimated the scale of resources required to conduct effective strategic bombing campaigns. In the July 1928 issue of "Rivista Aeronautica," Douhet asserted that deploying 300 tons of bombs on key urban centers could potentially conclude a conflict in under a month.

See also

• Aerial warfare
• Strategic bombing
• Amedeo Mecozzi

Further reading

• Giulio Douhet, Command of the Air, English translation, 1942
• Thomas Hippler, Bombing the People: Giulio Douhet and the Foundations of Air-Power Strategy, 1884-1939 (Cambridge University Press, 2013), 294 pages online review
• David MacIsaac, "Voices from the Central Blue: The Air Power Theorists," featured in Makers of Modern Strategy from Machiavelli to the Nuclear Age, edited by P. Paret, G. Craig, and F. Gilbert (Princeton University Press, 1986)
• Robert A. Pape, Bombing to Win: Air Power and Coercion in War (Cornell University Press, 1996)
• Louis A. Sigaud, Air Power and Unification: Douhet's Principles of Warfare and Their Application to the United States, The Military Service Publishing Co., 1949