The United States and its NATO allies are exploring a possible international effort to help secure the airport in Afghanistan's capital Kabul, after American troops withdraw from the country.<br />'' <br />''U.S. Army General Mark Milley, chairman of the Joint Chiefs of Staff, said yesterday that, a secure airport would be essential to ensuring that the United States and European allies could maintain embassies in Afghanistan.<br />'' <br />''President Joe Biden's April order to pull out all troops by 11 September could inflame Afghanistan's internal conflict between the internationally backed Afghan government and the Taliban insurgency.<br />'' <br />''<span style="color: #222222;">The Biden administration has stressed that the United States will remain committed to Afghanistan, shifting its focus to diplomacy while continuing robust financial support to Kabul.</span><br />