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For NATO Secretary General Mark Rutte, the Ankara summit next month “is about delivery.”

Rutte spoke at an Atlantic Council Front Page event on Thursday at the Council’s Washington headquarters, arguing that the Ankara summit could wind up “even more important” than last year’s in The Hague, where allies committed to spending 5 percent of their gross domestic product on defense.

“It’s great to have the commitments, and The Hague was a big success,” he explained, “but then to deliver on the commitments… is even more important.”

“In the end,” he said, Russian President Vladimir Putin “is not afraid of commitments. He is afraid of implementing those commitments.” And that, he added, “is exactly what we are doing, Vladimir.”