Aperture Book of the Month - October 2025

Beatrice Heuser, 'Flawed Strategy: Why Smart Leaders Make Bad Decisions'. Polity Press, Cambridge, 2025

Beatrice Heuser’s Flawed Strategy: Why Smart Leaders Make Bad Decisions is an illuminating and thought provoking examination of the persistent disconnect between rationality and successful strategy formulation. Heuser is, of course, a notable scholar of history and war, but in our book of the month for October, she provides insightful analysis of the structural, institutional, and cognitive challenges that all too often drive strategic failure. She does so by applying the realisation that ‘decision making is riddled with biases and irrational choices’ to the context of crises and conflict.

“Foreign policy analysis generally assumes not merely a logic common to humans - even though it might be based on differing premises, beliefs, values and assumptions - but rational actors on all sides”

Heuser’s central thesis is that failed policy and strategy (they are different) is systemic, arguing that highly intelligent, experienced, well-intentioned – and well resourced – leaders are vulnerable to bias and organisational dynamics, unable to reconcile the short-term demands of political survival with the long-term realities of effective strategy. Failure is, she asserts, baked into the decision-making process.

This is a profound study in systemic failure, something that resonates with us and our experience of nearly fifty years around Whitehall. This book demands that we view strategic decisions not as as isolated moments of genius or incompetence as the Daily Mail might suggest, but as the outcome of complex, fragmented organisations. Heuser’s approach resonates deeply with the foundational work of systems practitioners like John Seddon, and theorists such as Dr. Michael C. Jackson, who emphasises the need to match problem contexts - especially those marked by complexity and conflicting stakeholder interests - with appropriate methodological tools.

“The greatest strategic flaw is the self-reinforcing delusion that the problem we face is the one we wish to solve, rather than the intractable problem that actually exists. We substitute clarity of means for clarity of political ends.”

The habitual resort to short-term heuristics and over-reliance on individual opinion and past experience induces critical failure in complex strategic environments. While mental shortcuts offer immediate comfort and speed, they actively discourage engaging with interconnected variables and competing organizational interests. This preference inevitably leads to strategic brittleness, mistaking familiarity for feasibility and ensuring that nuanced approaches are sacrificed for those that are merely actionable. Such flawed methods and fallacies are incapable of addressing the systemic complexity of modern political and military problems.

Heuser argues, much as we have over the years, that strategy fails because the decision-making system itself is flawed. When highly intelligent leaders engage with what Jackson might term a pluralist (multiple conflicting perspectives) and complex (numerous interconnected variables) problem, they invariably resort to simplistic methodologies, the Silver Bullet. The result is meaningless ‘strategy’ that is internally inconsistent, organisationally fragmented, and ultimately prone to collapse.

“A fundamental flaw in our thinking is to assume that, because we would or would not do something, another would or would not do it either.”

Beatrice Heuser meticulously chronicles these systemic breakdowns, demonstrating that strategic failure is a predictable outcome of institutional and cognitive inertia. She structures her argument around three interconnected pillars of failure, each supported by case studies ranging from the Cold War and Vietnam to Kosovo and Afghanistan and from the fifth century BCE Persian wars to Ukraine.

The first of these breakdowns holds that human cognitive limitations are amplified in high-stakes environments. Heuser unpacks the tendency towards confirmation bias and the perils of groupthink, drawing parallels with the work of Daniel Kahneman and Amos Tversky on heuristics. She then turns to the structural breakdown within large bureaucratic systems, echoing our own drum-beat that strategy often fails because it is not a unified plan but a compromised (in more than one sense) amalgamation of competing organizational goals. Finally, Heuser returns to Clausewitz’ principle that conflict is a continuation of policy, lamenting that all too often political patience is sacrificed for the immediate gratification of the electoral cycle or perceived public demand for an ‘exit strategy’. And so we return to our frequent theme of aligning the problem with our purpose and perspective.

"Strategy is difficult not because war [competition?] is inherently complex, but because human beings, constrained by time, ego, and institution, find it nearly impossible to maintain intellectual discipline under duress. The smart leader's worst enemy is their own self-assurance."

In her conclusion, Heuser urges senior leaders to adopt ‘radical humility’, acknowledging that their cognitive abilities, however, sharp, are vulnerable to institutional pressures and psychological bias. Her contribution is to shift the dial from continuous dissection of ‘what’ has gone wrong in numerous strategic engagements, to ‘why’ we consistently get it wrong. She calls for intellectual rigour with iterative processes that integrate organisational learning, multiple perspectives, and a focus on outcomes rather than inputs and outputs.

‘Flawed Strategy’ is important reading for students of political science, military history, and policymaking, asking the difficult questions necessary to avoid repeating the strategic blunders of the past. Heuser isn’t cynical, she’s worried about the absence of meaningful decision making processes in the public sector (and also in the private sector).

We concur.