In an address to the nation from the White House on Wednesday morning, President Trump said no Americans were killed or wounded when Iranian forces launched more than a dozen ballistic missiles against two military bases in Iraq early Wednesday local time, marking the most significant Iranian attack in a growing conflict with the United States.

Defense Secretary Mark T. Esper said Wednesday evening that Iran launched 16 ballistic missiles, including 11 that landed at al-Asad air base and one in Irbil.

Speaking to reporters at the Pentagon, Esper said the missiles struck tents, a helicopter and other items but did not cause major damage.

Gen. Mark A. Milley, chairman of the Joint Chiefs of Staff, told reporters that he thinks Iranian forces intended to kill Americans and cause destruction but that an intelligence assessment would continue.

U.S. officials said Wednesday that they knew Iranian missiles were coming hours in advance of the attack after warnings from intelligence sources and communications from Iraq. Iraq’s acting prime minister has said he was informed of the attack ahead of time.

“We knew, and the Iraqis told us, that this was coming many hours in advance,” said a senior U.S. administration official who spoke on the condition of anonymity due to the sensitivity of the communications.

Speaker Nancy Pelosi (D-Calif.) announced that the House will vote Thursday on a measure to limit Trump’s military actions regarding Iran. Sen. Mike Lee (R-Utah) said the classified briefing by Trump administration officials Wednesday was “probably the worst briefing I’ve seen at least on a military issue in the nine years I’ve served in the United States Senate.”

Here’s what we know so far:

● The U.S. military said no Americans were killed or wounded in the Iranian missile attacks on bases in Iraq early Wednesday.

● U.S. officials said they knew Iranian missiles were coming hours before the attack.

● Iran’s supreme leader, Ayatollah Ali Khamenei, called the attack a “slap in the face” of the United States but said more needed to be done to end the U.S. presence in the region and avenge the death of powerful Iranian military commander Qasem Soleimani.

● Iraq’s acting prime minister said he was informed of the attack ahead of time.

● Lawmakers left a closed-door briefing with top national security officials divided over whether the strike that killed Soleimani was legally justified, and Pelosi said the House will vote Thursday on a measure to limit Trump’s military actions regarding Iran.

House Rules Committee sets parameters for war powers resolution vote

2:45 a.m.
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The House Rules Committee on Wednesday night established parameters for a vote on the war powers resolution, which would limit Trump’s military actions against Iran.

The House will vote on the resolution Thursday — a process that will include two hours of equally divided debate. The parameters were approved by a 9-to-4 vote.

In response, Rep. Debbie Lesko (R-Ariz.), tweeted, “Each of the nine Democrats on the House Rules Committee just voted to tie President [Trump’s] hands when it comes to defending America.”

“Shameful,” she added.

Biden tells Trump to ‘stop blaming Obama for his failures’

1:33 a.m.
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WASHINGTON — On Twitter late Wednesday, former vice president Joe Biden said Trump was unfairly targeting Barack Obama instead of laying out “a coherent strategy on Iran.”

“I’m thankful no one was hurt in last night’s attack,” Biden tweeted. “But we’re only in this mess because Donald Trump pulled out of the Iran Deal (which even his advisors said was working), turned his back on our allies and had no strategy for what comes next.”

In his remarks to the nation Wednesday morning, Trump took several shots at the Obama administration, accusing it of enabling Iran’s aggression.

“The missiles fired last night at us and our allies were paid for with the funds made available by the last administration,” Trump said. The claim was labeled both misleading and far-fetched by The Washington Post’s Fact Checker.

Graham suggests two of his fellow Republican senators are ‘empowering the enemy’

11:30 p.m.
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WASHINGTON — In response to criticism from Sens. Mike Lee (R-Utah) and Rand Paul (R-Ky.) over the classified Iran briefing by Trump administration officials Wednesday, Sen. Lindsey O. Graham (R-S.C.) said he believed they were “overreacting” and suggested their defiance was “empowering the enemy.”

His comments came after Lee had disparaged the briefing, calling it “probably the worst briefing I’ve seen at least on a military issue in the nine years I’ve served in the United States Senate.”

Lee and Paul, who are the most libertarian-leaning Republicans in the Senate, both indicated after the briefing that they would support the Democratic-led war powers resolution, which seeks to limit President Trump’s military actions regarding Iran.

“I think they’re overreacting, quite frankly,” Graham said. “Go debate all you want to. I’m going to debate you. ... I’m going to let people know that at this moment in time, to play this game with the War Powers Act — which I think is unconstitutional — is, whether you mean to or not, you’re empowering the enemy.”

He added: “I know you don’t mean to, but we live in the real world here. So debate all you want — this is a constitutional democracy — but get ready for a lively debate.”

Gen. Milley says he believes Iran intended to kill Americans and cause destruction in missile attacks

10:45 p.m.
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WASHINGTON — Defense Secretary Mark T. Esper said Iran launched 16 ballistic missiles, including 11 that landed at al-Asad air base and one in Irbil.

Speaking to reporters at the Pentagon, Esper said the missiles struck tents, a helicopter and other items but did not cause major damage. He said the missiles were fired from three sites in Iran, but he declined to say which.

Gen. Mark A. Milley, chairman of the Joint Chiefs of Staff, told reporters that he had assessed that Iran intended to cause material destruction and kill Americans in the attacks but that an intelligence estimate would continue.

“I believe based on what I saw and what I know is that they were intended to cause structural damage, destroy vehicles and equipment and aircraft and to kill personnel. That’s my own personal assessment,” he said.

The officials declined to give details about the advance warning the United States received but said it did not come from the Iraqi government. U.S. officials said earlier in the day that an early warning came from intelligence sources and communications from Iraq.

Trudeau condemns Iranian missile strikes in Iraq

10:05 p.m.
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TORONTO — Canadian Prime Minister Justin Trudeau on Wednesday condemned Iran for its missile strikes in Iraq and called events there “deeply concerning.”

Speaking publicly for the first time since Soleimani was killed, Trudeau said that all of the Canadians who were on the base that was attacked in Irbil are safe.

He said he has spoken with Trump and stressed the need for de-escalation in the region.

Trudeau declined to answer questions about whether he supported the U.S. decision to kill Soleimani or whether he agrees with U.S. officials that Soleimani had been plotting “imminent” attacks on U.S. targets.

“Canada has long been aware of the threat posed by the IRGC on regional and global safety and security,” Trudeau said, referring to Iran’s Islamic Revolutionary Guard Corps. Soleimani led the IRGC’s elite Quds Force.

Two rockets land inside Baghdad’s Green Zone

9:50 p.m.
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BAGHDAD — Iraq’s military said late Wednesday that two rockets had landed inside Baghdad’s heavily fortified Green Zone, causing no casualties. The explosions echoed across the center of the city, as sirens blared. It was unclear who launched the rockets.

Republican senator excoriates Trump administration officials over Iran briefing

9:40 p.m.
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WASHINGTON — In an exchange with reporters at the Capitol on Wednesday, Sen. Mike Lee (R-Utah) harshly criticized the administration’s classified national security briefing on Iran, calling it “probably the worst briefing I’ve seen at least on a military issue in the nine years I’ve served in the United States Senate.”

Lee said the message from the administration officials was that lawmakers need to be “good little boys and girls and run along and not debate this in public” — an instruction he described as “insane.”

“With history as our guide, consultation isn’t necessarily the same thing as authorization of the use of military force. … Drive-by notification or after-the-fact, lame briefings like the one we just received aren’t adequate,” Lee said.

He also said he was left “somewhat unsatisfied” on the level of information shared with regard to the legal justification behind the attack on Soleimani.

He said the briefing has influenced him to back a war powers resolution introduced by Sen. Tim Kaine (D-Va.), pending some minor amendments.

“It is not acceptable for officials within the executive branch … to come and tell us that we can’t debate and discuss the appropriateness of military intervention against Iran,” Lee said.

“It’s un-American, it’s unconstitutional, and it’s wrong.”

Pelosi says House will vote Thursday on measure to limit Trump’s military actions regarding Iran

9:15 p.m.
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WASHINGTON — Pelosi said in a statement Wednesday that lawmakers would vote Thursday on a war powers resolution “to limit the President’s military actions regarding Iran.”

Pelosi said the resolution will be led by Rep. Elissa Slotkin (D-Mich.) and will go to the House Rules Committee on Wednesday evening and be brought to the House floor Thursday.

“Members of Congress have serious, urgent concerns about the Administration’s decision to engage in hostilities against Iran and about its lack of strategy moving forward,” the speaker said in the statement. “Our concerns were not addressed by the President’s insufficient War Powers Act notification and by the Administration’s briefing today.”

NATO secretary general tells Trump that alliance ‘could contribute more’ in Middle East

9:10 p.m.
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BRUSSELS — Secretary General Jens Stoltenberg told Trump on Wednesday that NATO “could contribute more” in the Middle East, the alliance said, after Trump called on U.S. allies to step up in the region in the wake of Soleimani’s killing and Iran’s response.

Stoltenberg and Trump spoke by phone immediately after Trump’s Wednesday address to the nation, Stoltenberg’s office said.

“They agreed that NATO could contribute more to regional stability and the fight against international terrorism,” the alliance said in a statement, offering no specifics.

In Trump’s speech, he said he would ask NATO allies to “become much more involved in the Middle East process.”

NATO, founded in 1949 to defend Western Europe against the Soviet Union, has long been involved in the war in Afghanistan and, in a more limited way, in the conflict in Iraq. Trump has pushed it to be more involved in countering terrorism, which has been a matter of debate within the alliance, because some policymakers feel counterterrorism is a better fit for police and intelligence forces rather than the brawny military power that has traditionally been NATO’s strength.

But many NATO members have contributed troops to the U.S.-led coalition to defeat the Islamic State, and the alliance itself is also a member. NATO also runs training missions for Iraqi and Afghan security forces. The alliance suspended its Iraq training mission in the aftermath of Soleimani’s killing.

Any shift in NATO policy on the Middle East would have to be agreed to by the alliance’s 29 member nations.

U.S. officials knew Iranian missiles were coming hours in advance

8:30 p.m.
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WASHINGTON — The Iranian missile strike on Iraqi bases housing U.S. troops on Tuesday was a calibrated event intended to cause minimal American casualties, give the Iranians a face-saving measure and provide an opportunity for both sides to step back from the brink of war, according to senior U.S. officials in Washington and the Middle East.

White House officials were bracing as early as Tuesday morning for Iran to respond to the U.S. killing last week of Qasem Soleimani, the head of Iran’s elite Quds Force.

By Tuesday afternoon, U.S. officials said they knew that Iran intended to strike at U.S. facilities in Iraq, although it wasn’t immediately clear exactly which targets they would choose.

The early warning came from intelligence sources as well as communications from Iraq, which conveyed Iran’s intentions to launch the strike, officials said.

“We knew, and the Iraqis told us, that this was coming many hours in advance,” said a senior administration official, who like others spoke on the condition of anonymity to discuss sensitive intelligence and diplomatic communications.

“We had intelligence reports several hours in advance that the Iranians were seeking to strike the bases,” the official said. That gave military commanders time to get U.S. troops into safe, fortified positions at the Iraqi bases.

According to military officials, before the attacks, troops at bases in Iraq were ordered into bunkers, donned protective gear and were told to “shelter in place.” They remained in their protected positions for hours, including after the strike. One official said at least some troops left the al-Asad air base in western Iraq before the attack. The base, which houses some U.S. troops, was ultimately hit, along with a facility in Irbil, in northern Iraq.

Democrats and Republicans deeply divided after national security briefing on Soleimani killing

7:25 p.m.
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WASHINGTON — Lawmakers left a closed-door briefing with some of the Trump administration’s most senior national security officials Wednesday afternoon deeply divided over whether the administration was authorized to carry out the strike that killed Iranian military commander Qasem Soleimani in Baghdad last week.

The administration has repeatedly said Soleimani was killed to avoid an “imminent” attack against Americans. But Democrats said the briefing Wednesday did not make a convincing case that any looming threat against the United States was averted when Soleimani was killed.

House Foreign Affairs Committee Chairman Eliot L. Engel (D-N.Y.) said he did not leave the briefing feeling convinced that Soleimani posed an “imminent threat.” He said that his committee would hold hearings next week to move forward with assessing congressional authorization for military action, and that Pompeo has been invited to attend.

When asked whether he would consider subpoenaing Pompeo, Engel said, “It’s a possibility.”

“We haven’t made any decision on that,” he added.

Rep. Marcia L. Fudge (D-Ohio) said she wasn’t certain the officials even understood themselves why Soleimani was killed. “I don’t know that they know the rationale,” she said. “Certainly they didn’t tell me what it was. … The explanation did not in any way show that it was imminent. They did not convince me that it was something that should have been done.”

House Minority Whip Steve Scalise (R-La.) said officials walked lawmakers through the history of Soleimani’s threats against the United States and its allies, and said “the fact that he was plotting further attacks to kill Americans made it clear that it was time to take him out.”

“And obviously, you can’t go into full detail about the intelligence of those future attacks,” Scalise said. “But how much is enough?”

Rep. Seth Moulton (D-Mass.), a member of the House Armed Services Committee, echoed Fudge’s concerns. “I didn’t hear any justification that differed from any activity that Soleimani has conducted over the last 15 years at various points,” he said.

He described “multiple moments of grumbling in the room” during the briefing.

But Rep. Mike D. Rogers (R-Ala.) said that Gen. Mark A. Milley, chairman of the Joint Chiefs of Staff, spoke “with more specificity” about the imminence of the attack, and removed all doubt in his mind.

Rep. Chris Stewart (R-Utah), who serves on the House Permanent Select Committee on Intelligence, said he could say “with assurance” that the threat Soleimani posed “was not the same thing we’ve been seeing for the past few years. This was something different.”

Rogers said the attack was justified under the two Authorization for Use of Military Force (AUMF) resolutions passed in 2001 and 2002.

Scalise also said the 2002 AUMF authorized the attack and that lawmakers should be “coming together to support our commander-in-chief to protect America — not debating how to limit the president’s ability to defend this country.”

Rep. Mark Meadows (R-N.C.) also said it is an “inappropriate time” for the debate over war powers that some Democrats seek.

“You don’t have a debate about that in the middle of a conflict,” he said. “There’s no doubt he has legal authority,” he added, referring to Trump.

Rep. Mac Thornberry (R-Tex.), the top Republican on the armed services committee, said the briefing was vague, but that he left “persuaded that we had strong intelligence that meant we had to take action.”

He said he thinks the strike on Soleimani was legally justified, and that the United States has “the absolute right and I would say responsibility to protect Americans from such attacks.”

Meanwhile, Rep. Raja Krishnamoorthi (D-Ill.), also a member of the House intelligence committee, said he still does not know the legal or intelligence justification for the strike against Soleimani.

“I leave with the feeling of more questions than answers,” he said.

Republicans hail Trump’s speech, while Democrats urge caution

6:00 p.m.
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WASHINGTON — Congressional Republicans lauded Trump’s White House address, with Sen. Lindsey O. Graham (R-S.C.) calling it “a home run speech.”

“All Americans should support President Trump’s efforts to resolve the threat from Iran peacefully and fully understand the Maximum Pressure campaign must continue with a credible military component,” Graham tweeted.

House Minority Leader Kevin McCarthy (R-Calif.) compared Trump’s approach to that of President Ronald Reagan.

“‘Peace through strength’ — That was the Reagan doctrine, and that is the measured approach we are seeing from the Trump administration today,” McCarthy said on Twitter. “Thank you to our President and to our courageous troops for returning America to a position of respect and admiration around the world.”

Democrats, meanwhile, voiced skepticism about Trump’s remarks, describing the president as de-escalating a crisis of his own making.

“Trump’s bluster is not constructive in reaching a resolution,” Rep. Gregory W. Meeks (D-N.Y.) said in a tweet. “He scrapped a deal negotiated multilaterally with our allies, now he’s dragging those allies into the diplomatic disaster he himself has created. There’s a vacuum of sensible US leadership and everyone can see it.”

Rep. Jimmy Gomez (D-Calif.) criticized Trump for focusing much of his remarks on accusing the Obama administration of enabling Iran’s aggression.

“This was supposed to be an address to the nation. Instead, it was another embarrassing reminder of @realDonaldTrump’s absurd fixation on vilifying @BarackObama,” Gomez tweeted. “Making matters worse, it’s obvious this man cares more about appearing tough than keeping the American people safe.”

U.N. Secretary General calls for maximum restraint

5:55 p.m.
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WASHINGTON — U.N. Secretary General António Guterres called for world leaders to “exercise maximum restraint” Wednesday, his spokesman Stéphane Dujarric said in a statement.

“It is our common duty to make every effort to avoid a war in the [Persian] Gulf that the world cannot afford,” Dujarric said. “We must not forget the terrible human suffering caused by war.”

British foreign secretary lands in Washington for meetings with lawmakers, Pompeo

5:30 p.m.
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WASHINGTON — British Foreign Secretary Dominic Raab tweeted Wednesday afternoon that he had landed in Washington for “a day of valuable talks with senior members of Congress” ahead of a meeting with Secretary of State Mike Pompeo.

“A chance to discuss the importance of the UK/US security partnership and the need to de-escalate the situation in Iraq,” he wrote.

After the missile attack Wednesday, Raab urged Iran against “reckless and dangerous attacks.”

In a statement Wednesday, White House Deputy Press Secretary Judd Deere said that Trump spoke with British Prime Minister Boris Johnson and that the two “discussed the current situation in the Middle East and agreed to continue close coordination in support of shared national security interests.”

The United States is Britain’s most important ally, and Johnson has faced pressure to support the White House as he works to secure a free-trade deal amid Brexit woes.

Still, the British government has echoed European calls for de-escalation. And earlier this week, Johnson said he would not back Trump’s suggestion that the United States would target cultural sites in Iran if Iran struck “Americans or American assets.”

After a global outcry, Trump appeared to walk back those threats Tuesday.