Prime Minister Sir Keir Starmer has firmly stated that Ukraine must be the nation to determine its own future, following a crucial call with President Volodymyr Zelensky. The conversation, which also included the leaders of France and Germany, centred on a US-backed peace plan and the ongoing support for Kyiv against Russian aggression.
A Unified Stance on Sovereignty
Speaking from South Africa on Friday, 21st November 2025, where he is attending the G20 summit, Sir Keir emphasised the fundamental principle of Ukrainian sovereignty. He told broadcasters that he, alongside French President Emmanuel Macron and German Chancellor Friedrich Merz, had reinforced their unwavering support for Ukraine.
"We all want a just and lasting peace. That’s what the president of America wants. That’s what we all want," the Prime Minister said. "But the principle that Ukraine must determine its future under its sovereignty is a fundamental principle." This call comes amid reports that the White House had pressed Ukraine to agree to a plan involving territorial concessions and limits on its military size.
Navigating the US Peace Proposal
The proposed deal, reportedly negotiated by Donald Trump’s special envoy, Steve Witkoff, and Kremlin representative Kirill Dmitriev, has placed Kyiv in a delicate position. In response, President Zelensky acknowledged the efforts of the United States and President Trump's team following the four-leader call.
Zelensky stated, "We are working on the document prepared by the American side. This must be a plan that ensures a real and dignified peace." He confirmed that all parties are coordinating closely to ensure their principled stances are considered in any final agreement.
G20 Summit: A Platform for Support
Sir Keir's attendance at the G20 summit in Johannesburg is seen as a strategic move to shore up international backing for Ukraine. On the flight to South Africa on Thursday night, the Prime Minister previewed his intentions, linking his diplomatic efforts to the broader goal of a lasting peace.
He reiterated, "My position has always been focused on a just and lasting peace. That’s why we have done so much work on the Coalition of the Willing. But that is premised on the principle... that the future of Ukraine must be determined by Ukraine." This underscores the UK's continued commitment to ensuring that any peace process respects the will and sovereignty of the Ukrainian people.