WASHINGTON: President Joe Biden on Tuesday rejected criticism of his decision to stick to a deadline to pull out of Afghanistaninfo-icon this week, a move that left 100 to 200 Americans in the country along with thousands of USinfo-icon-aligned Afghan citizens.

In a televised address from the White House state dining room, Biden criticised the ousted Afghan government's inability to fight back against swift Taliban advances, which forced the United Statesinfo-icon and its Nato allies into a hasty and humiliating exit, and highlighted the role played by former president Donald Trumpinfo-icon.

The deal brokered by Trump authorised "the release of 5,000 prisoners last year, including some of the Taliban's top warinfo-icon commanders, among those who just took control", Biden said.

"By the time I came to office, the Taliban was in its strongest military position since 2001, controlling or contesting nearly half of the country," he said.

Officials believe 100 to 200 Americans remain in Afghanistan "with some intention to leave", Biden said. He said most of those who remained were dual citizens and long-time residents who earlier had decided to stay, adding the United States was determined to get them out.

Many lawmakers had called on Biden to extend the Aug 31 deadline to allow more Americans and Afghans to escape, but Biden said it was "not an arbitrary deadline", but one "designed to save lives".

"I take responsibility for the decision. Now some say we should have started mass evacuations sooner and couldn't this have been done in a more orderly manner. I respectfully disagree," said Biden.

Even if evacuations had begun in June or July, he said, "there still would have been a rush to the airport" by people wanting to leave.

The departure of the last US troops from Afghanistan this week as the Taliban took over caps two decades of military involvement that Biden was determined to end.

Testing times

While most Americans agreed with him, that end has not come smoothly. Biden's presidency, which had been focused on fighting the coronavirus pandemic and rebuilding the economyinfo-icon, now faces political probes over the handling of the withdrawal as well as the logistical challenge of finding new homes for thousands of Afghans being moved to US military bases.

Biden also must contend with a surge in coronavirus infections, disasters like hurricanes and wildfires, and a series of difficult deadlines for getting spending measures through Congress.

Republicans and some Democrats have expressed frustration and anger at the rapid fall of Afghanistan to the Taliban and what they see as a botched withdrawal.

Republicans are expected to use the crisis to try to derail Biden's policy and legislative agenda and as a talking point in the mid-term electionsinfo-icon next year.