The idea certainly had some traction in the inter-war years. [Here's a poster] ( http://airminded.org/wp-content/uploads/2015/03/abolish-all-war-aeroplanes.jpg ), for example, from the Friends' Peace Committee, probably from the early 1930s.

At the time there was a great fear of aerial bombing. Writers like H. G. Wells and military theorists such as Douhet and Groves presented nightmare scenarios of unstoppable bombers wreaking catastrophic devastation on military targets and civilian populations using high explosives, incendiaries and poison gas. As it turned out conventional bombardment failed to live up to those expectations, but the fear was very real in the 1920s and 1930s. Advocates of air power argued that a country would have to maintain their own powerful bomber fleet as a deterrent to such an attack, others pressed for either internationalisation of air forces, or complete disarmament.

Internationalisation generally centred on the League of Nations, with numerous proposals for organisations to police aviation (including civil aviation, as airliners or cargo aircraft could theoretically be rapidly converted into bombers); see, for example, Philip Noel-Baker's International Air Police Force from Challenge to Death of 1934. Stanley Baldwin also mentions (favourably, though sceptical of the practicality) the abolition of air forces and international control of civil aviation in his famous "the bomber will always get through" speech. With the League of Nations proving rather ineffective, any related proposals were inevitably doomed.

Dr Brett Holman's The Next War in the Air: Britain's Fear of the Bomber, 1908–1941 looks at the subject in depth, and he has a blog ([Airminded] (http://airminded.org/)) with a lot of excellent articles, such as [one on that poster from earlier] (http://airminded.org/2015/03/21/for-what/), and papers including [World police for world peace: British internationalism and the threat of a knock-out blow from the air, 1919-1945] (http://airminded.org/downloads/download-info/world-police-for-world-peace-british-internationalism-and-the-threat-of-a-knock-out-blow-from-the-air-1919-1945-pdf/).