Mark Rutte, who became NATO secretary-general nearly two years ago, is attending this week's summit in Ankara, Turkey. European allies and Canada have increased defense spending by $1.2 trillion since 2017, following commitments made at last year's summit to match U.S. GDP levels on defense. Rutte met with President Trump last month and presented data on these expenditures during discussions that also addressed the U.S.-Israel operation in Iran conducted without prior NATO consultation.