War is messy. You can't expect a clean war or "zero" civilian casualties. But it's been 18 years, and we've all gotten too complacent about death.
"This is a complete and utter national security disaster in the making and I hope President Trump will adjust his thinking," the Republican senator tweeted.
Between 19 and 21 people have been killed and hundreds injured as protesters clash with Iraqi security forces over calls for more job opportunities, an end to corruption and better access to social services.
Iraq and Syria have boosted relations despite the U.S. opposing the latter's government and attempting to curb the influence of their mutual ally Iran.
Canadian politicians might not be able to save "Jihadi Jack" from a Kurdish prison, where he has been held for two and a half years.
Dozens of House Democrats signed a letter on Tuesday urging Trump to stop detaining and deporting Iraqi nationals. Jimmy Aldaoud's "death was a direct and predictable result of his deportation," they said.
"His death could have and should have been prevented, as his deportation was essentially a death sentence," said Democratic Michigan Rep. Andy Levin.
In a rare move by U.S. military officials, a Naval Special Warfare platoon has been expelled from Iraq and directed to return to San Diego, California after commanders learned of allegations of unauthorized drinking and sexual assault.
Twenty veterans a day die by suicide. The president needs to guarantee the men and women of our forces are taken care of, both during and after their service.
The palace site, known as Kemune, was until recently covered by water from a reservoir, according to archaeologists.
California Republican Duncan Hunter said that as an artillery officer in Iraq his unit likely killed "hundreds" of civilians during his time fighting overseas.
"I think it's incredibly dangerous," Representative Seth Moulton warned.
Senator Chris Murphy said "dumb wars start when each party mistakenly believes that the other party's defensive or reactive actions are actually offensive and proactive."
"We get carried away by our weapons, firepower, superiority, technology, all this kind of stuff, and we fail to look at the human factor," diplomat Robert Oakley told Newsweek in 2003.
The Late Show host made comparisons between current tensions with Iran and the prelude to war with Iraq in 2003.
"Be on the lookout for Iraq 2.0 justifications. I'm not even kidding," one U.S. military official told Newsweek.
"Iran is no threat to anybody in Iraq or elsewhere, and Iran is not preparing for any attacks anywhere," the spokesperson for Iran's mission to the United Nations said.
The department urged citizens to leave Iraq as soon as possible and avoid all U.S. facilities in the country.
Iran ultimately "intended to achieve absolute security, defined as the ability to thwart its adversaries' ability to overturn its regime or invade Iran militarily," according to a new report.
"We are actually considering escalating with Iran in a war that would further destabilize the region and unleash God knows what in terms of chaos in a very troubled region already," Elise Jordan said.
Iran said it would remain "committed to the framework" of the 2015 nuclear deal that the U.S. abandoned one year ago.
"It's a complete disregard for the judgment of those leaders who were put there to hear all the evidence and decided whether somebody was a murderer or not," said a lawyer who specializes in U.S. military cases.
Iran's top diplomat said his country would stop only "some" actions it has "voluntarily" carried out. But his counterpart in the U.S., which is no longer part of the deal, said Tehran's either in or out.
A review of persecution of Christians across the world finds alarming evidence that extremists are getting closer to eradicating Christianity in some areas.
Russia warned of tensions spilling over across regions such as Asia and Africa and warned that a U.S. failure to repair collapsing arms control treaties could destabilize global security.
Russia doubts a U.S. report alleging that Iran was behind the deaths of 608 U.S. troops in Iraq and pointed to the hundreds of thousands of civilians killed since the 2003 invasion.
"I want him to be remembered as the best father that anyone could ask for, and also at the same time being the best soldier that anyone could ask for," said the son of a soldier set to receive the Medal of Honor. "He was my icon."