"I hope I’m wrong, but there’s a war coming,” Neller told Marines in Norway.

Cyber-terrorism topped the list of threats to U.S. security in the Military Times poll. Nearly 89 percent of those surveyed listed it as a significant threat, with more than half of those calling it a major concern.

And many troops worry the U.S. is not fully prepared for cyber warfare. One-third of service members said they disapprove of the country’s current policies on combating cyber terrorism. Only about 13 percent said they strongly back government and military efforts underway.

Foreign terrorist organizations like Al Qaeda and the Islamic State group were seen as less of a threat than domestic terrorist groups. About 57 percent of troops see U.S.-based Islamic extremists as a significant threat, compared to 49 percent for other domestic terrorist groups and 48 percent for foreign ones. Last year, more than 59 percent of troops said Al Qaeda and ISIS posed significant threats.

The biggest decrease shown in this year’s poll was North Korea, which was seen as a significant threat by more than 72 percent of troops one year ago, but in this year’s poll only 46 percent described the country that way.

In the last year, U.S. posture toward North Korea has also seen a dramatic shift. Trump moved from mocking North Korean leader Kim Jong Un on social media last fall — calling him “Little Rocket Man” — to publicly proclaiming his respect for the controversial dictator, following a peace summit between the two in June.

Even with U.S. forces still deployed to Iraq and Afghanistan — or perhaps because of it — those countries were seen as a significant threat by less than 13 percent of the armed forces. That’s well behind Iran (41 percent), Syria (24 percent) and Saudi Arabia (18 percent).