War continues in Afghanistan as US marks 18 years since 9/11 attacks

Donald Trump marked his third 9/11 anniversary as president with a moment of silence as his frustration grows over what he calls the “endless war” in Afghanistan, where al Qaida conceived the attacks.
It has been 18 years since al Qaida hijackers commandeered four US commercial airliners and crashed them into the World Trade Centre, the Pentagon and a field in Shanksville, Pennsylvania.