European leaders pay tribute to Starmer as EU-UK summit is postponed

Keir Starmer’s resignation as UK prime minister has triggered the postponement of a planned EU-UK summit and prompted a series of public tributes from European leaders who had worked with him on relations with Brussels.

The summit had been due to take place on July 22, but the change in leadership means it will not now go ahead as planned. Starmer will remain in office as caretaker prime minister until Labour selects a successor.

The delay matters because the summit was one of the clearest diplomatic markers of the broader effort to reset UK-EU ties after Brexit, including cooperation on trade, diplomacy and security.

Immediate reaction

European Council President António Costa said he hoped Starmer’s successor would continue the work of resetting the relationship between the UK and the EU. His comments put the central question clearly: whether the next British leader will keep the same European direction.

European Commission President Ursula von der Leyen praised Starmer as a statesman and credited him with contributions to European and Ukrainian security. The tribute reflected the importance Brussels attached to his role in the relationship.

Ukrainian President Volodymyr Zelenskyy also thanked Starmer for supportive decisions despite earlier tensions in the relationship. His remarks highlighted the way Starmer had become part of the wider European security conversation, not just bilateral UK-EU diplomacy.

German Chancellor Friedrich Merz’s office described Starmer as a reliable foreign policy partner. That response reinforced the sense that his departure is being felt across the continent, not only in London.

Why the summit mattered

The postponed summit was more than a routine meeting. It was one of the most visible institutional parts of the effort to rebuild ties between the UK and the EU after Brexit.

That reset agenda has been linked to practical cooperation on security, foreign policy and the management of wider European challenges. Starmer’s resignation now introduces uncertainty into how that agenda will be carried forward.

For Brussels, the delay removes a carefully prepared diplomatic moment. For London, it opens a period in which domestic political change could affect external policy at a sensitive time for Europe and Ukraine.

What happens next

Labour is expected to choose a new leader, who will also become the next prime minister. That transition will determine whether the postponed summit is rescheduled quickly and whether the government keeps the same approach to the EU.

The immediate issue is not only the summit itself, but whether continuity can be preserved through the leadership change. Costa’s comments suggest EU officials will be watching closely for signs that the reset agenda survives the transition.

For now, Starmer remains in office as caretaker prime minister. The next phase of the story will hinge on who replaces him, when the summit is put back on the calendar, and how far the next UK leader is willing to continue his European policy.