Advancing Strategic Thought Through Independent Defence Scholarship

The Defence Horizon Journal is an independent international platform bringing together researchers, practitioners and military professionals to advance informed debate on security and defence.

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    Abstract: The international system is undergoing a transformation that extends beyond conventional great-power rivalry. What is changing is not simply the distribution of power among states, but the mechanisms through which power is exercised, sustained, and constrained. Assumptions that shaped much of the post-Cold War era economic interdependence as a stabilising force, globalisation as a… Read more →

  • Peter Gill and Mark Phythian, (Polity 3rd Edition, 2018). pp. 256. For a Hollywood buff, Peter Gill and Mark Phythian’s Intelligence in an Insecure World feels a bit off because it doesn’t really romanticise espionage. Instead of just lingering on secretive heroics or that familiar operational myth thing, the authors drop the reader into how… Read more →

  • Abstract: AI companion platforms are purpose-built to validate, affirm, and emotionally sustain their users. This article examines whether that structural logic poses a measurable radicalisation risk for individuals already predisposed to lone-actor terrorism. Drawing on a structured simulation conducted across seven ideological profiles and three AI companion personality types on Ourdream AI, the study finds… Read more →

  • Abstract: As Europe confronts the return of high-intensity warfare and prolonged industrial attrition, longstanding assumptions about defence readiness are being reconsidered. This report examines Türkiye’s evolving role within the European security landscape, arguing that Ankara has emerged as a significant yet inherently limited contributor to addressing Europe’s structural shortfalls in manpower, munitions, and operational adaptability.… Read more →

  • Abstract: This article challenges the post‑2014 Russian claim that NATO enlargement systematically ignored Russia’s legitimate security interests. Drawing on Vladimir Putin’s own speeches and interviews from 2000–2004, combined with primary documents such as the 1997 NATO–Russia Founding Act, it demonstrates that Moscow repeatedly accepted Alliance enlargement, deepened institutional cooperation, and even contemplated Russian membership. The… Read more →

  • Abstract: Technological acceleration is compressing decision-making timelines between nuclear-armed adversaries in ways classical deterrence theory did not anticipate. This essay introduces the concept of “missile-induced systemic compression” to explain how supersonic velocity and dual-capable ambiguity—the inability to distinguish conventional from nuclear warheads—systematically reduce crisis decision windows below the threshold required for deliberative management. Examining the… Read more →

  • Abstract: Force designers face demanding methodological challenges when considering how best to adapt concepts, successfully adopt new technologies, and overhaul existing structures and processes amid a fundamentally changing geostrategic environment. The Defence Metaverse, an ultra-realistic virtual twin of the battlefield, and powerful new red AI tactics offer sovereign European solutions to tackle these challenges by… Read more →

  • Bianca Lins and Josef Schröfl, (Peter Land Group: Lausanne, 2026). pp. 236. The Cyber and Information Space Matrix offers an ambitious attempt to systematise one of the most complex terrains in contemporary security: the convergence of cyberspace, information environments, and modern conflict. Edited by Bianca Lins and Josef Schröfl, the volume positions itself at the… Read more →

  • Abstract: This paper argues that (military) leaders need to develop four critical capabilities to succeed in a disruptive and ambiguous environment. It goes on to contrast these desiderata with the fundamental trade-off between readiness and quality that permeates all military training and education, including academic studies. To counter a specific threat within a given time… Read more →

  • Abstract: This study examines how the People’s Republic of China and Taiwanese media frame United States-Taiwan arms sales using unsupervised text mining methods. It analyses English-language news coverage from 2019 to 2026, a period marked by delayed U.S. arms transfers and political debate over Taiwan’s defence spending. Drawing on articles from Taiwanese and PRC-affiliated media,… Read more →

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