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President Trump’s doctrine of force marks a break from protracted wars and liberal interventionism, advancing a precision-driven, threat-specific, and transactionally grounded approach to US military engagement.
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In June of 2025, the United States (US) conducted Operation Midnight Hammer, a simultaneous air and missile attack on Iran’s nuclear facilities. It was a brief, precisely calibrated effort, but it bore the long-time hallmarks of President Donald Trump’s signature way of war. It was not a one-time occurrence but the latest manifestation of a military doctrine developed in his first term - a doctrine worked out in increments, first through the 2017 and 2018 Syria strikes and escalated air campaigns in Afghanistan, including the use of a Massive Ordnance Air Blast Bomb (MOAB), the largest non-nuclear bomb ever used by the US in a conflict. These episodes reveal a rational, even if non-traditional, doctrine at variance with both the liberal internationalists and neocons who have long dominated US military interventions.
At its core, Trump's doctrine of force rests on three overriding principles: i) threat-focused precision, ii) avoidance of long-term entanglements, and iii) force as a means of transaction along with domestic as well as geopolitical aims. Unapologetically unilateralist in approach, this doctrine is rich in strategic sense and is grounded in the conviction that US power is unipolar yet best exercised selectively, swift in action yet limited in scope, and aimed at protecting essential national security concerns over moral or institutional imperatives.
At its core, Trump's doctrine of force rests on three overriding principles: i) threat-focused precision, ii) avoidance of long-term entanglements, and iii) force as a means of transaction along with domestic as well as geopolitical aims.
What distinguishes Trump’s use of force is not the novelty of airstrikes or targeted operations, but the logic governing their deployment. First, they are threat-dependent. Strike decisions are not based on regime change, humanitarian intervention, or alliance solidarity in principle, but on perceptions of a direct, immediate, high-stakes threat to US national interests. For example, there were intelligence assessments in 2025 that Iran's nuclear programme had crossed some red lines, as had been the case in Syria in 2017 and again in 2018 due to the use of chemical weapons - a red line not enforced under the Obama administration.
Second, Trump’s military policy reflects an emphatic distaste for long military engagements. Even at the height of American engagement in Afghanistan under Trump, he was adamant that withdrawal was the ultimate aim. “We are not nation-building again,” he famously proclaimed in his 2017 Afghanistan policy speech. This inclination - part realism, part politics - is such that the US under Trump only deploys force in those forms which serve most to minimise commitment: drone strikes, air power, and short raids, increasingly complemented with express assurances that the US does not wish to fight long wars or pursue occupation.
Third, Trump’s doctrine is one of transactional realism: force is frequently placed within a larger strategic bargaining framework. In Iran, the strike was as much a demonstration of will as a pressure point to compel diplomatic reassessment. In Afghanistan, intensified air bombing in 2018 and 2019 preceded negotiations with the Taliban. In Syria, precision bombing was a message of warning whereby some norms (such as the non-use of chemical weapons) would have to be enforced, but without making a commitment towards greater involvement within the civil war. That message is consistent: force is deployed as a means of punishing foes, gauging reactions, and adjusting bargaining stances, not a tool to irreversibly transform geopolitical landscapes.
Trump’s use of force is reactive but not erratic; it is based on a risk assessment that deems inaction costlier than calibrated strikes. In this sense, his approach resembles deterrence-by-punishment, seeking to make an example out of adversaries through precise, high-impact military action.
The “Trump Doctrine” draws from a complex interplay of military, geopolitical, and political drivers, all of which converge leading up to a decision. The first and most evident driver is strategic threat calculus. Trump’s use of force is reactive but not erratic; it is based on a risk assessment that deems inaction costlier than calibrated strikes. In this sense, his approach resembles deterrence-by-punishment, seeking to make an example out of adversaries through precise, high-impact military action.
Another driver is operational effectiveness and risk minimisation. Trump’s reliance on airpower in place of ground troops is as much a matter of policy as of military strategy, in seeking ways to avoid US casualties and the fatigue of entanglement. The concept of a “clean war” that is precise, distant, and technologically sophisticated, appeals as much to the military establishment as it does to any domestic political constituency. It further allows Trump maximum freedom of action, since he can act unilaterally without inviting either public or legislative backlash that any large deployment would provoke.
The third driver of Trump’s force policy is the considerations of domestic politics, especially the need to project strength without eliciting prolonged costs. Military action, under Trump’s administration, serves a twofold objective: it deters adversaries while supporting the perceptions of a leader who is hard-hitting, not afraid of action, and who stands up for US interests. Every military strike is consequently a reminder to the domestic constituency, thereby reaffirming narratives of leadership, determination, and national prestige. Fourth, the “Trump Doctrine” is shaped by geopolitical alignment and selective alliance signalling. Trump is uninterested in rallying global coalitions for legitimising purposes, as his predecessors have done. His reasoning is not multilateral but strategic: inasmuch as there is an existential threat facing one of America’s allies, such as the threat faced by Israel from Iran’s nuclear programme, Washington can act, coordinating a force posture that may fall outside of international mandates. Force is thus presented as a tool of bilateral signalling, strengthening strategic alliances without locking them inside larger institutional structures.
Finally, there is a normative undercurrent - a renewed attempt at asserting some red lines in international behaviour. Even as Trump has repeatedly been accused of norm erosion, his military operations have had the unintended effect of maintaining some: the Syria strikes reiterated the chemical weapon taboo; the Iran strike served as a reminder of non-proliferation enforcement beyond traditional treaty processes. However, this norm enforcement is always interest-bound - it is not pursued for universalist reasons, but because violations are seen to imperil American power or credibility.
We will likely see a further departure from presence-based deterrence towards capability-based deterrence. Forward deployment of bases and troops will be reduced, while investments in rapid-strike, precision capabilities, including stealth bombers, long-range missiles, and cyber capabilities, will grow.
The implications of Trump’s doctrine extend far, both in Washington and in the world security order. First, we will likely see a further departure from presence-based deterrence towards capability-based deterrence. Forward deployment of bases and troops will be reduced, while investments in rapid-strike, precision capabilities, including stealth bombers, long-range missiles, and cyber capabilities, will grow.
Second, Trump’s approach advances a decoupling of military action from larger political or reconstruction objectives. There is no desire to win “heart and minds” or remake societies. Operational intent is punitive or coercive, not transformative. This produces a sharper but narrower instrument of engagement - one potentially useful in crisis management but limited in capacity to shape long-term interests.
Third, we can expect an erosion of norms of collective security, as unilateral strikes in pursuit of national interest instead of consensus become accepted as the new normal. Trump’s method sets aside international institutions in favour of unilateral action. Even as this maximises operational freedom, it minimises global legitimacy and can embolden other powers to act in kind.
And finally, the “Trump Doctrine” mandates deploying force in the future under heightened conditionality - with increased instrumentalism, but no changes in frequency. The conditions under which action is contemplated have remained modest: categorical threat, low risk, maximum effect. However, under these parameters, military strikes as a statecraft tool become routine - recursive, unattributable, yet supremely strategically transparent.
President Trump’s use of force - exemplified by the recent strikes in Iran, and foreshadowed in Syria and Afghanistan - represents a doctrinal shift away from prolonged wars and moral crusades toward a calibrated, coercive, and deeply transactional model of military engagement. This doctrine is not isolationist, but it is deeply sceptical of overreach. It is not pacifist, but it is wary of costs. Its future is one of selective supremacy - the faith in US power as most effectively exercised not in perpetuity, but in precision, surprise, and unrepentant self-interest. Whether this paradigm will be sustainable or disruptive remains to be seen, but it offers, in any case, a transparent window into US military statecraft in the 21st century.
Manish Dabhade is an Associate Professor in the School of International Studies, JNU, teaching diplomacy and national security.
The views expressed above belong to the author(s). ORF research and analyses now available on Telegram! Click here to access our curated content — blogs, longforms and interviews.
Manish Dabhade teaches at Jawaharlal Nehru University and is the Founder of The Indian Futures a New Delhi-based think tank.
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