Joe Biden insists on the August 31 deadline for pulling out troops from Afghanistan and end the evacuation campaign, despite the pressure from G7 nations to extend it.

The G7 nations urged Biden to continue the evacuation of people from Afghanistan from airlifts for more time. However, Biden insisted the risk of terror attacks was too great to accede to the appeals.

The United States currently has about 5,800 troops at the airport who have been anchoring the airlifts from Kabul.

According to an official from the US and its allies' mission in Afghanistan, No country will be able to evacuate all their citizens after the August 31 deadline.

"We will go on right up until the last moment that we can,” the UK Prime Minister Boris Johnson said. Johnson had been actively involved in lobbying to extend the deadline beyond the set deadline.

Johnson acknowledged he was unable to sway Biden to extend the U.S. military presence in Tuesday's talks.

“But you’ve heard what the president of the United States has had to say, you’ve heard what the Taliban have said,” he said.

A French official who was also involved in lobbying to extend the deadline on the behalf of President Emanuel Macron said it is in the "hand of Americans" to have a final decision over when to leave.