The Pentagon has said the US will slash troop levels in Afghanistan and Iraq by mid-January, before President Donald Trump is due to vacate the White House for Joe Biden, even as Republicans and US allies warned of the dangers of a premature withdrawal. The announcement came just after rockets were fired at the American embassy in Baghdad.
Rejecting concerns that a hastened exit could give up all the US has fought for, Acting Defense Secretary Chris Miller said around 2,000 troops would be pulled from Afghanistan by 15 January. Five hundred more would come back from Iraq by the same date, leaving 2,500 in each country.
The moves reflect Trump's policy "to bring the wars in Afghanistan and Iraq to a successful and responsible conclusion and to bring our brave service members home," Miller said.
Miller added the US had met its goals, set in 2001 after the Al Qaeda attacks on the United States, to defeat Islamist extremists and to help "local partners and allies to take the lead in the fight".
Ending 'endless wars'
The moves took the United States closer to disengaging from conflicts that have continued through three presidencies with no end in sight since 2001.
Amid criticism that Trump was acting abruptly since his defeat, White House National Security Advisor Robert O'Brien said the troop cuts have been in the works for some time.
"Four years ago President Trump ran on a promise to put a stop to America's endless wars. Today it was just announced at the Pentagon that President Trump is keeping that promise to the American people."
"By May it is President Trump's hope that they will come home safely and in their entirety."
It comes 10 days after Trump fired Defense Decretary Mark Esper, who had insisted on keeping 4,500 troops in Afghanistan to support Afghan security forces.
Esper had reduced US forces from about 13,000 following a deal with the Taliban in February, in which both sides agreed the Taliban would enter into peace talks with the Kabul government, in return for US troops withdrawing by May 2021.
But until Esper's removal, the Pentagon had argued that the Taliban had not met pledges to reduce violent attacks, which have surged across the country in recent months.
In Iraq, Trump has also pulled back US forces amid dozens of rocket attacks by Iran-allied groups on the US embassy and bases housing American troops.
On Tuesday, a volley of rockets slammed into Baghdad's Green Zone breaking a month-long truce on attacks against the US embassy.
Speaking on grounds of anonymity, a senior US defence official dismissed concerns over the risk of resurgences by Al Qaeda and the Islamic State.
"The professionals in the military service have agreed that this is the right move," the official said.
"Al Qaeda has been in Afghanistan for decades and the reality is, we'd be fools to say they are going to leave tomorrow."
Allies and senior US politicians though saw US troop cuts as dangerous.
On Monday US Senate Majority Leader Mitch McConnell warned the Afghan cuts could lead to a debacle like the "humiliating American departure from Vietnam" in 1975, and be a propaganda victory for 'Islamic extremists'.
NATO chief Jens Stoltenberg warned Tuesday that Afghanistan could return to being "a platform for international terrorists to plan and organise attacks on our homelands."
Democratic Senator Jack Reed, who sits on the Senate Armed Services Committee, accused Trump of a "cynical, chaotic approach" designed to burnish his own legacy while leaving a mess for successor Biden.
But another senior Democrat, House Armed Services Committee Chairman Adam Smith, said that after speaking with Miller, he saw the move as "the right policy decision."