NATO chief faces challenge at summit as Trump demands 'loyalty'

Since he started work as NATO secretary-general almost two years ago, Mark Rutte has spent much of his time trying to keep the United States anchored to the world’s biggest military alliance, employing outright flattery to dissuade U.S. President Donald Trump from acting on threats to abandon it.

But the goalposts keep shifting, raising the stakes ahead of this week’s summit in Türkiye.

Initially, it was about money. Trump has long railed against NATO allies for spending too small a fraction of their national budgets on defense. But those problems were addressed at their summit last year, when U.S. allies committed to invest as much as America, in gross domestic product terms.

NATO's real problem now is turning that money into military capabilities, particularly as European countries worry about a possible attack from Russia.