Isegoria

Strategic airpower aims to win the war on its own, Bret Devereaux explains:

Aircraft cannot generally hold ground, administer territory, build trust, establish institutions, or consolidate gains, so using airpower rapidly becomes a question of ‘what to bomb’ because delivering firepower is what those aircraft can do.

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Like many theorists at the time, Douhet was thinking about how to avoid a repeat of the trench stalemate, which as you may recall was particularly bad for Italy. For Douhet, there was a geometry to this problem; land warfare was two dimensional and thus it was possible to simply block armies. But aircraft – specifically bombers – could move in three dimensions; the sky was not merely larger than the land but massively so as a product of the square-cube law. To stop a bomber, the enemy must find the bomber and in such an enormous space finding the bomber would be next to impossible, especially as flight ceilings increased. In Britain, Stanley Baldwin summed up this vision by famously quipping, “no power on earth can protect the man in the street from being bombed. Whatever people may tell him, the bomber will always get through.” And technology seemed to be moving this way as the possibility for long-range aircraft carrying heavy loads and high altitudes became more and more a reality in the 1920s and early 1930s.

Consequently, Douhet assumed there could be no effective defense against fleets of bombers (and thus little point in investing in air defenses or fighters to stop them). Rather than wasting time on the heavily entrenched front lines, stuck in the stalemate, they could fly over the stalemate to attack the enemy directly. In this case, Douhet imagined these bombers would target – with a mix of explosive, incendiary and poison gas munitions) the “peacetime industrial and commercial establishment; important buildings, private and public; transportation arteries and centers; and certain designated areas of civilian population.” This onslaught would in turn be so severe that the populace would force its government to make peace to make the bombing stop. Douhet went so far to predict (in 1928) that just 300 tons of bombs dropped on civilian centers could end a war in a month; in The War of 19– he offered a scenario where in a renewed war between Germany and France where the latter surrendered under bombing pressure before it could even mobilize. Douhet imagined this, somewhat counterintuitively, as a more humane form of war: while the entire effort would be aimed at butchering as many civilians as possible, he thought doing so would end wars quickly and thus result in less death.

Clever ideas to save lives by killing more people are surprisingly common and unsurprisingly rarely turn out to work.

Now before we move forward, I think we want to unpack that vision just a bit, because there are actually quite a few assumptions there. First, Douhet is assuming that there will be no way to locate or intercept the bombers in the vastness of the sky, that they will be able to accurately navigate to and strike their targets (which are, in the event, major cities) and be able to carry sufficient explosive payloads to destroy those targets. But the largest assumption of all is that the application of explosives to cities would lead to collapsing civilian morale and peace; it was a wholly untested assumption, which was about to become an extremely well-tested assumption. But for Douhet’s theory to work, all of those assumptions in the chain – lack of interception, effective delivery of munitions, sufficient munitions to deliver and bombing triggering morale collapse – needed to be true. In the event, none of them were.

What Douhet couldn’t have known was that one of those assumptions would already be in the process of collapsing before the next major war. The British Tizard Commission tested the first Radio Detection and Finding device successfully in 1935, what we tend to now call radar (for RAdio Detection And Ranging). Douhet had assumed the only way to actually find those bombers would be the venerable Mk. 1 Eyeball and indeed they made doing so a formidable task (the Mk. 1 Ear was actually a more useful device in many cases). But radar changed the game, allowing the detection of flying objects at much greater range and with a fair degree of precision. The British started planning and building a complete network of radar stations covering the coastline in 1936, what would become the ‘Chain Home’ system. The bomber was no longer untrackable.

That was in turn matched by changes in the design of the bomber’s great enemy, fighters. Douhet had assumed big, powerful bombers could not only be undetected, but would fly at altitudes and speeds which would render them difficult to intercept. Fighter designs, however, advanced just as fast. First flown in 1935, the Hawker Hurricane could fly at 340mph and up to 36,000 feet, plenty fast and high enough to catch the bombers of the day. The German Bf 109, deployed in 1937 (the same year the Hurricane saw widespread deployment) was actually a touch faster and could make it to 39,000 feet. If the bomber could be found, it could absolutely be engaged by such planes and those fighters, being faster and more maneuverable could absolutely shoot the bomber down. Indeed, when it came to it over Britain and Germany, bombers proved to be horribly vulnerable to fighters if they weren’t well escorted by their own long-range fighters.

Cracks were thus already appearing in Douhet’s vision of wars won entirely through the air. But the question had already become tied up in institutional rivalries in quite a few countries, particularly Britain and the United States. After all, if future wars would be won by the air, that implied that military spending – a scarce and shrinking commodity in the interwar years – ought to be channeled away from ground or naval forces and towards fledgling air forces like the Royal Air Force (RAF) or the US Army Air Corps (soon to be the US Army Air Forces, then to be the US Air Force), either to fund massive fleets of bombers or fancy new fighters to intercept massive fleets of bombers or, ideally both. Just as importantly, if airpower could achieve independent strategic effects, it made no sense to tie the air arm to the ground by making it a subordinate part of a country’s army; the generals would always prioritize the ground war. Consequently, strategic airpower, as distinct from any other kind of airpower, became the crucial argument for both the funding and independence of a country’s air arm. That matters of course because, while we are discussing strategic airpower here, it is not – as you will recall from above – the only kind. But it was the only kind which could justify a fully independent Air Force.

Upton Sinclair once quipped that, “It is difficult to get a man to understand something, when his salary depends on him not understanding it.” Increasingly That was in turn matched by changes in the design of the bomber’s great enemy, fighters. Douhet had assumed big, powerful bombers could not only be undetected, but would fly at altitudes and speeds which would render them difficult to intercept. Fighter designs, however, advanced just as fast. First flown in 1935, the Hawker Hurricane could fly at 340mph and up to 36,000 feet, plenty fast and high enough to catch the bombers of the day. The German Bf 109, deployed in 1937 (the same year the Hurricane saw widespread deployment) was actually a touch faster and could make it to 39,000 feet. If the bomber could be found, it could absolutely be engaged by such planes and those fighters, being faster and more maneuverable could absolutely shoot the bomber down. Indeed, when it came to it over Britain and Germany, bombers proved to be horribly vulnerable to fighters if they weren’t well escorted by their own long-range fighters.

Cracks were thus already appearing in Douhet’s vision of wars won entirely through the air. But the question had already become tied up in institutional rivalries in quite a few countries, particularly Britain and the United States. After all, if future wars would be won by the air, that implied that military spending – a scarce and shrinking commodity in the interwar years – ought to be channeled away from ground or naval forces and towards fledgling air forces like the Royal Air Force (RAF) or the US Army Air Corps (soon to be the US Army Air Forces, then to be the US Air Force), either to fund massive fleets of bombers or fancy new fighters to intercept massive fleets of bombers or, ideally both. Just as importantly, if airpower could achieve independent strategic effects, it made no sense to tie the air arm to the ground by making it a subordinate part of a country’s army; the generals would always prioritize the ground war. Consequently, strategic airpower, as distinct from any other kind of airpower, became the crucial argument for both the funding and independence of a country’s air arm. That matters of course because, while we are discussing strategic airpower here, it is not – as you will recall from above – the only kind. But it was the only kind which could justify a fully independent Air Force.

Upton Sinclair once quipped that, “It is difficult to get a man to understand something, when his salary depends on him not understanding it.” Increasingly the salaries of airmen in the United States and Britain depended on understanding that strategic bombing – again, distinct from other forms of airpower – could work, would work and would be a war winner.

I’ve mentioned this question of Why do we have an Air Force? before.

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