The move came after President Joe Biden said Tuesday that he would not extend the August 31 deadline for the withdrawal of U.S. troops despite calls from European allies assisting the effort for more time.

Polish Deputy Foreign Minister Marcin Przydacz said Wednesday that Poland’s last evacuees were transported from Kabul to Uzbekistan, and its decision to end evacuations came after a consultation with officials from the U.S. and Britain.

“After a long analysis of reports on the security situation, we cannot risk the lives of our diplomats and of our soldiers any longer,” Przydacz said.

Poland used more than a dozen planes to transport hundreds of Afghans, some of whom have since moved on to other countries. Some troops will stay temporarily in Afghanistan to tie up Poland’s operation, according to Przydacz.

For more reporting from the Associated Press, see below.

European allies pressed for more time but lost the argument, and as a practical matter they may be forced to end their evacuations a couple of days before the last American troops leave. Several countries haven’t said yet when they plan to end their operations, perhaps hoping to avoid yet another fatal crush at an airport that’s one of the last ways out of the country.

The Taliban wrested back control of Afghanistan nearly 20 years after they were ousted in a U.S.-led invasion following the 9/11 attacks. Their return to power has pushed many Afghans to flee, fearing reprisals from the fighters or a return to the brutal rule they imposed when they last ran the country.

Thousands of people are still thought to be trying to leave the country, and it’s not clear that everyone who wants to will be able to before the end of the month. But any decision by Biden to stay longer could reignite a war between the Taliban and American troops and other coalition forces who are running the airlift.

“Due to extreme tension on the ground…and the scheduled departure of American forces, these evacuations are a true race against time,” French government spokesman Gabriel Attal said Wednesday. He said that his country’s evacuation would likely end would “a few hours, maybe a few days ahead” of the American departure.

The Czech Republic declared its own evacuation mission complete last week.

Chaos at the Kabul airport has transfixed the world after the Taliban’s blitz across Afghanistan saw it seize control of a nation that received hundreds of billions of dollars in reconstruction aid and security support since the 2001 U.S.-led invasion.

Afghans poured onto the tarmac last week, and some clung to a U.S. military transport plane as it took off, later plunging to their deaths. At least seven people died that day, and another seven died Sunday in a panicked stampede.

Thousands have thronged the airport in the days since, and the U.S. and its allies have worked to speed the evacuation in recent days, sometimes flying people out before their paperwork is fully processed and bringing them to transit points in Europe or Asia. On Wednesday, a group of 51 people landed in Uganda, which became the first African nation to host evacuees.

European nations, including American allies Germany and the United Kingdom, had pressed for a longer window to continue evacuations past the deadline next week. CIA director William Burns even traveled to Kabul on Monday to meet the Taliban’s top political leader. However, Biden has stuck to the August date, even after an emergency online summit of the Group of Seven nations.

That left European nations with no choice but to abide by the deadline.

“That the overall deployment literally stands and falls with the stance of the militarily strongest member of the alliance, the U.S., was always clear to us,” German Chancellor Angela Merkel said in a speech to parliament.

“We will continue the evacuation operation for as long as possible, in order also to make it possible for Afghans who worked with us for security, freedom, the rule of law and development to leave the country,” she added.

She did not give a date for when the last German evacuation flight would leave but said that even after that effort ended, the country would work to see if it could continue to help people by “among other things through civilian use of Kabul airport.”

For now, the U.S. military coordinates all air traffic in and out of the Kabul airport. Taliban spokesman Suhail Shaheen wrote on Twitter that they planned to allow people to fly out of Kabul airport via commercial flights after the August deadline.

However, it remained unclear what commercial carriers would immediately resume flights to an airport fully under Taliban control. On Wednesday, a stream of military planes took off from the airfield as evacuees lined up on the tarmac. The desperate remained outside, some standing knee-deep in sewage and waving identity documents at Western soldiers in hopes of being allowed to go beyond the barbed wire fencing and onto a flight out.

While the final withdrawal date just under a week away, analyst Patricia Lewis said the practical deadline for the evacuations to stop was “the next couple of days.”

“You can’t just say, ‘OK, midnight, we’ll stop now, we’ll just pack up gently,’” said Lewis, who is the director of the international security program at the Chatham House international affairs think tank. “There’s a huge amount of stuff that has to be done, including getting all the people out who are doing the job and all the equipment.”

“All of the allies are highly dependent on the U.S. for military cover, particularly air cover,” Lewis said. “They can’t put their own people at risk, so it really depends on when the U.S. starts packing up.”