Add Yahoo as a preferred source to see more of our stories on Google. President Donald Trump, pictured in Davos, Switzerland on Wednesday, has cast doubt on whether the United States' allies would rally to its defense. - Mandel Ngan/AFP/Getty Images US ...

America's NATO allies say they're not disappointed by top Trump administration officials skipping summits, as they ramp up their own regional defenses.

The former secretary general of NATO says he doesn't think allies will be pulled further into the conflict in the Middle East, but he's concerned the ongoing war with Iran will benefit Russia's economy and take the world’s attention away from the invasion of Ukraine.

The director of a NATO research group told BI the crisis scenario she's most worried about at present.