Britain's Prime Minister Keir Starmer speaks at a press conference during the European Political Community summit at Blenheim Palace in Woodstock, Oxfordshire, England, Thursday July 18, 2024. (Stefan Rousseau/PA via AP, Pool)
FILE - A view of Blenheim Palace in Woodstock, Oxfordshire, England, March 24, 2009. Leaders from across Europe gather at an English country mansion on Thursday, July 18, 2024, for a summit overshadowed by worries about whether the United States will remain a reliable ally if Donald Trump secures a second presidency. (Steve Parsons/PA via AP, File)
Chancellor of Germany Olaf Scholz arrives to attend the European Political Community summit at Blenheim Palace in Woodstock, Oxfordshire, England, Thursday July 18, 2024. (Jacob King/Pool Photo via AP)
British Prime Minister Keir Starmer, right, gestures as he speaks with Ukrainian President Volodymyr Zelenskyy, left, before the start of the first plenary session at the European Political Community meeting in Blenheim Palace, Woodstock, England, Thursday, July 18, 2024. (AP Photo/Kin Cheung, Pool)
Britain's King Charles, right, shakes hands with Ukrainian President Volodymyr Zelenskyy during the European Political Community meeting, near Oxford, England, Thursday July 18, 2024. (Hollie Adams/Pool via AP)
British Prime Minister Keir Starmer, right, gestures as he speaks during the first plenary session, with Ukrainian President Volodymyr Zelenskyy, left, at the European Political Community meeting in Blenheim Palace, Woodstock, England, Thursday, July 18, 2024. (AP Photo/Kin Cheung, Pool)
The President of France Emmanuel Macron listens to British Prime Minister Keir Starmer during the first plenary session at the European Political Community meeting in Blenheim Palace, Woodstock, England , Thursday, July 18, 2024. (AP Photo/Kin Cheung, Pool)
Britain's King Charles, left, greets French President Emmanuel Macron during the European Political Community meeting, near Oxford, England, Thursday July 18, 2024. (Hollie Adams/Pool via AP)
Britain's Prime Minister Sir Keir Starmer, right, greets Ukrainian President Volodymyr Zelenskyy as he arrives to attend the European Political Community summit at Blenheim Palace in Woodstock, Oxfordshire, England, Thursday July 18, 2024. (Jacob King/Pool Photo via AP)
President of Ukraine Volodymyr Zelenskyy, left, is welcomed by Prime Minister Sir Keir Starmer, right, to the European Political Community summit at Blenheim Palace in Woodstock, Oxfordshire, England, Thursday, July 18, 2024. (Stefan Rousseau/PA via AP, Pool)
Prime Minister of Estonia Kaja Kallas arrives to attend the European Political Community summit at Blenheim Palace in Woodstock, Oxfordshire, England, Thursday July 18, 2024. (Jacob King/Pool Photo via AP)
British Prime Minister Keir Starmer, right, speaks during the first plenary session, with Ukrainian President Volodymyr Zelenskyy, left, at the European Political Community meeting in Blenheim Palace, Woodstock, England , Thursday, July 18, 2024. (AP Photo/Kin Cheung, Pool)
British Prime Minister Keir Starmer, right, gestures as he speaks with Ukrainian President Volodymyr Zelenskyy, left, before the start of the first plenary session at the European Political Community meeting in Blenheim Palace, Woodstock, England, Thursday, July 18, 2024. (AP Photo/Kin Cheung, Pool)
Prime Minister of Hungary Viktor Orban gestures as he arrives to attend the European Political Community summit at Blenheim Palace in Woodstock, Oxfordshire, England, Thursday July 18, 2024. (Jacob King/Pool Photo via AP)
Britain's Prime Minister Sir Keir Starmer, right, greets France's President Emmanuel Macron as he arrives to attend the European Political Community summit at Blenheim Palace in Woodstock, Oxfordshire, England, Thursday July 18, 2024. (Jacob King/Pool Photo via AP)
President of Kosovo Vjosa Osmani arrives to attend the European Political Community summit at Blenheim Palace in Woodstock, Oxfordshire, England, Thursday July 18, 2024. (Jacob King/Pool Photo via AP)
President of Ukraine Volodymyr Zelenskyy arrives at the European Political Community summit at Blenheim Palace in Woodstock, Oxfordshire, England, Thursday, July 18, 2024. (Stefan Rousseau/PA via AP, Pool)
Britain's King Charles, left, stands next to Spain's Prime Minister Pedro Sanchez, right, during the European Political Community meeting, near Oxford, England, Thursday July 18, 2024. (Hollie Adams/Pool via AP)
Britain's Prime minister Keir Starmer, centre, makes remarks at the opening plenary session during the European Political Community meeting at Blenheim Palace in Woodstock, England, Thursday, July 18, 2024. From the left is the Prime Minister of Denmark Mette Frederiksen, Ukrainian President Volodymyr Zelenskyy, Prime Minister of Britain Keir Starmer, Charles Michel President of the Council of Europe and President of Moldova Maia Sandu (AP Photo/Kin Cheung, Pool)
Britain's Prime Minister Keir Starmer, front second right, and Ukrainian President Volodymyr Zelenskyy , front left, pose for a family photo with Europe's leaders during the European Political Community Summit at Blenheim Palace in Woodstock, England, Thursday, July 18, 2024. (Carl Court/Pool Photo via AP)
Britain's Prime Minister Keir Starmer, left, talks with France's President Emmanuel Macron during the European Political Community meeting, near Oxford, England, Thursday July 18, 2024. (Hollie Adams/Pool via AP)
Ukrainian President Volodymyr Zelenskyy arrives to attend the European Political Community summit at Blenheim Palace in Woodstock, Oxfordshire, England, Thursday July 18, 2024. (Jacob King/Pool Photo via AP)
Prime Minister of the Netherlands Dick Schoof arrives to attend the European Political Community summit at Blenheim Palace in Woodstock, Oxfordshire, England, Thursday, July 18, 2024. (Jacob King/PA via AP, Pool)