<span style="color: #222222;">The United States has said no American troops or officials will be held accountable for a drone strike that killed 10 people in Afghanistan in August. The attack took place during the final days of the US-led evacuation of Kabul after the Taliban seized control.<br />''<br />''In the strike, ten-person died including seven children.<br />''<br />''But in the aftermath, US Central Command's Gen Kenneth McKenzie described the strike on 29 August as a tragic mistake.</span><br />