As high-stakes talks over Ukraine continue in Washington, UK Prime Minister Keir Starmer is hoping to turn an unlikely relationship with US President Donald Trump into diplomatic leverage.
Starmer, who has maintained a calculated distance from Trump’s more controversial policies, is quietly positioning himself as someone who can “get along” with the unpredictable US leader — a skill that could prove critical as European leaders push for firm American backing in any Ukraine peace deal.
Behind closed doors, sources say Starmer has been careful not to antagonize Trump, while also making it clear that the UK and Europe have red lines that cannot be crossed — especially when it comes to Ukraine’s territorial sovereignty and long-term security.
Trump, who has floated the idea of direct peace talks between Ukrainian President Volodymyr Zelenskyy and Russian President Vladimir Putin, has also signaled a reluctance to continue full-scale US military aid. That has alarmed European allies, who see American support as essential in any future settlement.
Starmer is walking a tightrope: building rapport with a president known for disregarding diplomatic norms, while holding firm on core principles shared by NATO and the EU. It’s a balancing act that requires both political discipline and strategic subtlety.
While some international leaders — including French President Emmanuel Macron and German Chancellor Friedrich Merz — have taken a tougher public line with Trump, Starmer has kept his tone measured. His approach reflects a broader UK strategy to remain influential in global diplomacy post-Brexit, especially on major security issues like Ukraine.
The UK has so far remained one of Kyiv’s most vocal supporters. But with US policy potentially shifting under Trump, Starmer is betting that keeping open channels with the White House could help prevent worst-case outcomes — such as a forced territorial deal or a weakening of NATO’s united stance.
European leaders remain wary of Trump’s motives. Many fear a rushed deal that could see Ukraine pressured into concessions, particularly if Trump views a quick resolution as politically beneficial. That’s why Starmer, alongside other European heads of state, is emphasizing the need for enforceable security guarantees as part of any agreement.
The prime minister’s diplomatic performance this week could set the tone for the rest of Labour’s term. With the UK back at the international table under new leadership, how Starmer manages this relationship with Trump — part caution, part cooperation — could determine how much influence Britain retains in shaping global peace and security.