Britain's Prime Minister Keir Starmer addresses the media as he arrives for the NATO summit in Ankara, on July 8, 2026. The summit comes at a fraught time for the 77-year-old transatlantic alliance, with the US President demanding members make good on a pledge to ramp up defence spending as Washington takes a step back from Europe. (Photo by Alexis JUMEAU / POOL / AFP via Getty Images)

Britain's Prime Minister Keir Starmer addresses the media as he arrives for the NATO summit in Ankara, on July 8, 2026. The summit comes at a fraught time for the 77-year-old transatlantic alliance, with the US President demanding members make good on a pledge to ramp up defence spending as Washington takes a step back from Europe. (Photo by Alexis JUMEAU / POOL / AFP via Getty Images)

Germany's Chancellor Friedrich Merz addresses the media as he arrives for the NATO summit in Ankara, on July 8, 2026. The summit comes at a fraught time for the 77-year-old transatlantic alliance, with the US President demanding members make good on a pledge to ramp up defence spending as Washington takes a step back from Europe. (Photo by Alexis JUMEAU / POOL / AFP via Getty Images)

Germany's Chancellor Friedrich Merz addresses the media as he arrives for the NATO summit in Ankara, on July 8, 2026. The summit comes at a fraught time for the 77-year-old transatlantic alliance, with the US President demanding members make good on a pledge to ramp up defence spending as Washington takes a step back from Europe. (Photo by Alexis JUMEAU / POOL / AFP via Getty Images)

Germany's Chancellor Friedrich Merz addresses the media as he arrives for the NATO summit in Ankara, on July 8, 2026. The summit comes at a fraught time for the 77-year-old transatlantic alliance, with the US President demanding members make good on a pledge to ramp up defence spending as Washington takes a step back from Europe. (Photo by Alexis JUMEAU / POOL / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and US President Donald Trump meet on the sidelines of the NATO summit in Ankara, on July 8, 2026. The summit comes at a fraught time for the 77-year-old transatlantic alliance, with the US President demanding members make good on a pledge to ramp up defence spending as Washington takes a step back from Europe. (Photo by Filip SINGER / POOL / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and US President Donald Trump meet on the sidelines of the NATO summit in Ankara, on July 8, 2026. The summit comes at a fraught time for the 77-year-old transatlantic alliance, with the US President demanding members make good on a pledge to ramp up defence spending as Washington takes a step back from Europe. (Photo by Filip SINGER / POOL / AFP via Getty Images)

This handout photograph taken and release by NATO shows NATO Secretary General Mark Rutte speaking to the press as he arrives for the NATO summit in Ankara, on July 8, 2026. The summit comes at a fraught time for the 77-year-old transatlantic alliance, with the US President demanding members make good on a pledge to ramp up defence spending as Washington takes a step back from Europe. (Photo by Handout / NATO / AFP via Getty Images) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / NATO / HANDOUT / " - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS