As the Middle East conflict grinds into its seventh week, a quieter but equally seismic realignment is taking place across the Channel. The Trump administration’s unpredictable behaviour and its public disparagement of a historic ally have provided the decisive impetus for Prime Minister Keir Starmer to accelerate Britain’s long‑mooted diplomatic “reset” with the European Union. A decade after the Brexit referendum, the Iran war has not only exposed the fragility of the “special relationship” but has also fundamentally altered the political calculus in London, making deeper integration with the bloc not just desirable, but a strategic necessity.
At the heart of this shift is the forthcoming EU “reset” bill, a piece of legislation that will grant ministers the power to unilaterally align British standards with evolving EU single‑market rules, a process Whitehall officials term “dynamic alignment”. While Starmer has repeatedly ruled out rejoining the single market or restoring freedom of movement, the bill represents the most significant step toward regulatory convergence since the 2016 referendum. King Charles III is scheduled to announce the bill on 13 May, as part of the government’s legislative agenda for the coming months. The new framework is expected to cover areas ranging from food and plant exports to electricity market integration, with the explicit goal of smoothing trade and boosting economic resilience. As one UK official noted, “We need to build economic resilience across the continent,” and the Iran war has made that imperative “more prescient.”
The immediate catalyst for this acceleration has been Donald Trump’s erratic conduct toward the UK. The president has repeatedly insulted Starmer, mocked Prime Minister Keir Starmer’s negotiating stance, and threatened to scrap a US‑UK trade deal that had previously shielded Britain from his broader tariff blitz. In a recent phone interview with Sky News, Trump warned that he would tear up the agreement, a move that would inflict severe damage on key British industries. More fundamentally, Trump’s decision to launch a joint bombing campaign with Israel against Iran on 28 February, a war that Starmer has steadfastly refused to join has laid bare the unreliability of the American security guarantee. While Starmer has allowed US forces to use UK bases for “limited defensive purposes,” he has drawn a firm red line against direct participation, a stance that has enraged the White House. Evie Aspinall, director of the British Foreign Policy Group think‑tank, observed: “We have a government that is already eager to move closer towards the EU, and the events in Iran provide an opportunity to speed up that process.”
The economic case for a reset has been dramatically underscored by the International Monetary Fund. In its half‑yearly update, the Fund warned that the UK would be the advanced economy hardest hit by the Iran conflict, suffering the steepest growth downgrade and joint‑highest inflation rate in the G7 this year. Britain’s gas‑heavy power mix leaves it unusually exposed to energy price shocks, and the IMF now forecasts UK growth of just 0.8% in 2026, a sharp reduction from its previous projection of 1.3%. In a sign of the shifting political winds, UK Finance Minister Rachel Reeves has publicly blamed Trump for starting the war “without a clear exit plan,” directly linking Washington’s adventurism to rising cost‑of‑living pressures on British households. With the EU remaining Britain’s largest trading partner, the logic of deepening ties with Brussels has become inescapable. David Henig, an expert on post‑Brexit trade policy, told AFP: “Independent UK trade policy looks much harder, the prospects of working with the EU much brighter.”
Despite the momentum, the reset remains a political minefield. The hard‑right Reform UK party, which leads in many opinion polls under the leadership of arch‑Eurosceptic Nigel Farage, has branded the proposed legislation “a betrayal” of the 2016 referendum result. Conservative MPs have also cried “Brexit betrayal,” warning that the bill would allow EU rules to be adopted without a full parliamentary vote on each piece of red tape. The government has responded defiantly, with one official telling AFP: “Bring it on.” Yet the political landscape has shifted beneath their feet. YouGov’s January 2026 Brexit Tracker found that 50% of Britons would now vote to rejoin the EU, while a separate survey in April showed 53% in favour of rejoining, with only 32% opposed. More strikingly, 84% of respondents in one poll agreed that Britain should rejoin because it would be better for the economy. This growing public appetite for closer ties provides Starmer with a crucial tailwind.
The reset is already taking concrete shape. Britain and the EU are finalising negotiations on a youth mobility scheme, which would allow 18‑ to 30‑year‑olds to travel and work freely between the UK and the bloc, ahead of a joint summit expected in Brussels in late June or early July. The two sides are also working on an electricity deal that would integrate the UK into the EU’s internal energy market, and on a trade agreement to ease red tape on food and plant exports. While Starmer has ruled out a return to full free movement, the cumulative effect of these measures would represent the most significant deepening of UK‑EU relations since Brexit. The Liberal Democrats, Britain’s traditional third party, are already pushing Starmer to go further by negotiating a customs union. As Calum Miller, the party’s foreign affairs spokesman, told AFP: “We need to be doubling down on relations with reliable partners who share our interests and values.”