NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan (R) greets Czech Republic's Prime Minister Andrej Babis as he arrives for the 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 SAUL LOEB / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan (R) greets Romania's President Nicusor Dan as he arrives for the 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 SAUL LOEB / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan (R) greets Greece's Prime Minister Kyriakos Mitsotakis as he arrives for the 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 SAUL LOEB / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan (R) greets Greece's Prime Minister Kyriakos Mitsotakis as he arrives for the 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 SAUL LOEB / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan (R) greets Sweden's Prime Minister Ulf Kristersson as he arrives for the 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 SAUL LOEB / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan greets Czech Republic's Prime Minister Andrej Babis as he arrives for the 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 SAUL LOEB / AFP via Getty Images)

NATO Secretary General Mark Rutte (L) and Turkey's President Recep Tayyip Erdogan greets Czech Republic's Prime Minister Andrej Babis as he arrives for the 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 SAUL LOEB / AFP via Getty Images)

NATO Secretary General Mark Rutte greets US President Donald Trump (C), next to Turkey's President Recep Tayyip Erdogan (R), as he arrives for the 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 Alastair Grant / POOL / AFP via Getty Images)