Donald Trump, who was elected in 2016 on a pledge to halt America's endless foreign conflicts, has presided over a dramatic shift towards aggressive global interventionism. This reversal has left European allies, including the UK, confronting an increasingly unstable superpower and urgently reassessing their own security framework.
From Disengagement to Aggression: A Foreign Policy Reversal
President Trump's initial promise to end "forever wars" resonated with millions of Americans weary of overseas conflicts. However, his actions in office have starkly contradicted this vow. His administration's approach to disengagement was marked by chaotic and irresponsible decisions, such as the 2019 withdrawal from Syria, which betrayed Kurdish allies and allowed ISIS remnants to regroup, and the 2020 deal with the Taliban that excluded the Afghan government, leading to the disastrous 2021 pullout.
This pattern has been completely overturned in his subsequent term. Recent weeks have seen a significant escalation in US military and coercive actions abroad. These include overnight bombing raids in Syria against ISIS following a deadly ambush in Palmyra, attacks on Islamic militants in Nigeria, and the ordered abduction of Venezuela's head of state, Nicolás Maduro. Furthermore, Trump has escalated threats against Denmark over Greenland, actions that risk destabilising the NATO alliance.
A Reckless Logic and Global Consequences
The justification for many of these actions, such as simple retribution, underscores a foreign policy driven by impulse rather than strategic ethics. The move against Maduro was accompanied by transparent motives regarding Venezuela's oil wealth, yet has left the corrupt regime in place while failing to attract serious investment. The puerile snubbing of opposition leader María Corina Machado for accepting the Nobel Peace Prize further reveals the unserious nature of this approach.
Critically, America is now acting with impunity, threatening and bombing weaker nations far beyond its claimed sphere of influence. The January 2020 assassination of Iranian General Qasem Soleimani may have set a precedent for this taste for overseas shows of force, with Iran potentially in the crosshairs once more. This interventionist streak, driven by the whims of one leader, poses catastrophic risks, including the potential collapse of NATO and a major conflict between Western Europe and Russia.
Europe's Response: The Path to an Independent Nuclear Deterrent
Faced with this reality, the UK and Europe can no longer rely on US security guarantees. Opinion is divided between confronting Trump directly or acquiescing, but a third path is emerging. 2026 could mark an inflection point, with Britain and France – potentially backed by German investment – moving rapidly towards a truly independent, submarine- and air-launched nuclear deterrent.
Both nations are already working on replacements for existing systems; cooperation would save significant time, money, and political capital. A new European nuclear shield, independent of US warheads, would serve multiple purposes: silencing MAGA critics, strengthening Europe's hand in defending allies like Denmark and Greenland, and sending a clear signal to Vladimir Putin about European resolve.
While such a shield would not cure Trump's addiction to overseas military adventures, it would ensure that Europe is no longer wholly at the mercy of them. The urgent need for a credible, independent plan of action has never been clearer as the world's most powerful nation continues on its rogue trajectory.