NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan greet Greece's Prime Minister Kyriakos Mitsotakis as he arrives for a NATO Summit at Bestepe Presidential Compound in Ankara, Turkey, 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 Ludovic MARIN / POOL / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan greet Sweden's Prime Minister Ulf Kristersson as he arrives for a NATO Summit at Bestepe Presidential Compound in Ankara, Turkey, 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 Ludovic MARIN / POOL / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan greet Sweden's Prime Minister Ulf Kristersson as he arrives for a NATO Summit at Bestepe Presidential Compound in Ankara, Turkey, 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 Ludovic MARIN / POOL / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan greet Canada's Prime Minister Mark Carney as he arrives for a NATO Summit at Bestepe Presidential Compound in Ankara, Turkey, 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 Ludovic MARIN / POOL / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan greet Iceland's Prime Minister Kristrun Frostadottir as she arrives for a NATO Summit at Bestepe Presidential Compound in Ankara, Turkey, 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 Ludovic MARIN / POOL / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan greet Poland's President Karol Nawrocki as he arrives for a NATO Summit at Bestepe Presidential Compound in Ankara, Turkey, 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 Ludovic MARIN / POOL / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan greet Estonia's Prime Minister Kristen Michal as he arrives for a NATO Summit at Bestepe Presidential Compound in Ankara, Turkey, 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 Ludovic MARIN / POOL / AFP via Getty Images)

Turkey's President Recep Tayyip Erdogan reacts as he greets guests 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 Ludovic MARIN / POOL / AFP via Getty Images)