Reviewed by Dr Tyler Morton

Lori Henning, Harnessing the Airplane: American and British Cavalry Responses to a New Technology, 1903–1939. Norman, OK: University of Oklahoma Press, 2019. Figures. Tables. Appendices. Notes. Bibliography. Index. Hbk. xi + 224pp.


The advent of flying craft was, without doubt, a threat to the long-established roles of ground forces. Most historians are familiar with the intra- and inter-service battles that raged during the early days of aviation, but rare are the works that dive into specific details within the various army branches. Seeking to fill that historiographical gap, Lori Henning’s meticulously researched book does just that.

Harnessing the Airplane tells the story of how cavalrymen in the United States (US) and the United Kingdom (UK) dealt with the integration of aircraft – and to a lesser degree, the tank – into their branch. Analysing the first four decades following the aircraft’s invention, Henning shows that cavalrymen generally accepted the new technology, but were cautious about relinquishing the cavalry’s reconnaissance mission too hastily. Instead, the cavalry sought to experiment with aircraft to find ways to improve the reconnaissance service they provided to ground commanders.

Chapter one, ‘State of Affairs,’ sets the stage for the following analysis. In this chapter, Henning provides brief histories of the US and British cavalries. This baseline helps explain why both services saw the integration of the aircraft differently. The US cavalry embraced a wide range of missions and used the horse primarily for mobility purposes. This view of how to use horses led to strong resistance against aircraft as the US Cavalry viewed ground reconnaissance as one of its most essential functions. The British used the cavalry primarily for mounted combat and the pursuit of retreating enemy forces and this view allowed the British cavalry to be somewhat more accepting of aircraft.

Chapter two, ‘Early Response to Heavier-Than-Air-Flight,’ highlights the natural connection between aircraft and the cavalry. With reconnaissance being the first purpose of aircraft, cavalry reconnaissance was not surprisingly one of the first missions the aircraft sought to assume. In the earliest days, both nations’ cavalries acknowledged the potential of aircraft, but concluded that the technology was not sufficient; as Henning stated (p. 32):

The general consensus was that aviation would support the cavalry in the field as an auxiliary service and not replace mounted forces.

Chapter three, ‘Developing a Relationship in the 1920s,’ explores how both nations’ evaluated the First World War and the effectiveness of the new technologies that were introduced in that conflict. In the First World War, aircraft played a significant role while both cavalries were effectively absent. The public sentiment that the cavalry had become obsolete increased and cavalrymen in both nations had to defend their branch and find ways to justify its continued existence.

Chapter four, ‘National Economy,’ looks at the factor that may have been more damning to the cavalry than its poor performance in the First World War. In examining the financial arguments favouring aircraft over the cavalry, Henning provides a glimpse into reality. This was that the US and UK sought ways to decrease military expenditures and the aircraft’s proponents were more vociferous and persuasive in making this case than the proponents of cavalry.

Chapter five, ‘Autogiros and Mechanization,’ examines how cavalrymen continued to seek ways to work with the air forces to maximise both services’ effectiveness. By the 1930s, the relationship between air forces and cavalry had stabilised, but as time passed, airmen sought independence and increasingly focused on the strategic vice tactical use of aircraft. Both the British and American cavalry branches realised the need for its own air support, and as such, they turned to a new type of aircraft – the autogiro – to provide the airborne reconnaissance they needed.

Henning’s concluding chapter reminds us of the folly of abandoning functioning capabilities without first providing suitable replacements. Cavalrymen instantly recognised the potential of aircraft and tanks but approached their integration into the army from a cautious view. Despite being labelled as ‘backwards,’ the cavalrymen prudently sought ways to integrate the aircraft as its capabilities increased slowly. In telling this story, Harnessing the Airplane captures the essence of how organisations incorporate new technologies. Henning’s expert analysis highlights the challenge leaders face when presented with the next ‘game-changing technology.’ As she demonstrates, often, many are eager to go all-in without first ensuring that the ‘new’ can replace the ‘old.’ As we now stand at another technological crossroads with continual talk of replacing soldiers with robots, manned aircraft with drones, and analysts with artificial intelligence, this work highlights the rational approach of the early 20th century cavalrymen and provides a case study for today’s military thinkers to consider.

Dr Tyler Morton is currently a fellow at the Woodrow Wilson International Center for Scholars in Washington, DC. He is an active duty US Air Force officer who holds a PhD in Military Strategy from the Air University. He is the author of From Kites to Cold War: The Evolution of Manned Airborne Reconnaissance (2019). He can be found on Twitter at @ty_morto.

Header Image: Dayton-Wright DH-4s of the US 12th Aero Squadron flying liaison with US Army cavalry on patrol on the United States/Mexico border, c. 1920. (Source: Wikimedia)

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