Secret war games attended by top U.S. military brass reportedly showed up to 10,000 American troops would be injured within days of the conflict.
Insurgents for the group overran three checkpoints in night raids on Tuesday.
But the total number of civilian casualties actually decreased in 2017, the U.N. said.
Russia's ambassador to North Korea said Moscow's nuclear-armed neighbor would consider an attempt to stop oil flow to be a "declaration of war."
China's official military newspaper compared nuclear weapons to a sword of Damocles hanging over humanity, but said upgrades were necessary.
Health ministry spokesman Wahid Majroh said at least 40 people were killed and 140 wounded in the blast.
"It will be a very, very kinetic, physical, violent fight over some really, really tough ground, and everybody is going to have to be mentally prepared," Marine Corps Commandant General Robert Neller said.
A man who claimed to be a bodyguard to Kim Jong Il said his youngest son was "angry," "stressed" and "his personality was explosive."
Kim Jong Un's lack of response to Trump's "nuclear button" tweet may mean North Korea is serious about peace talks. But is the U.S.?
Nearly a year after Trump took office, 17 former nuclear launch officers said, "The reality of this presidency is worse than we feared."
The U.S.'s highest-ranking enlisted soldier said the coalition would beat ISIS fighters to death with shovels if they didn't give up.
A year after winning Aleppo, the Syrian military and its Russian ally launched a devastating offensive against the last rebel province of Idlib.
As Winter Storm Grayson barreled up the East Coast Thursday, the bomb cyclone pummeled the Northeast, causing dangerous floods in Boston.
Let's break down the terms.
One year ago today, Donald Trump vowed North Korean supreme leader Kim Jong Un would never launch an intercontinental ballistic missile.
The Islamic State militant group, or ISIS, claimed responsibility for a series of explosions in the Afghan capital of Kabul that left at least 41 dead and 84 wounded on Thursday, according to reports.
China and Russia have urged a peaceful solution to the nuclear crisis with North Korea, but if the U.S. invades, they're preparing to fight.
In its latest commentary, North Korea's official news agency warned that "the right to preemptive attack is not exclusive to the U.S."
Russia says the world needs open dialog rather than talking about talking.
North Korea said President Donald Trump and his administration had "not yet waken from a sleep" and had not come to terms with reality.