Strategic misjudgments, military interventions doom US 'war on terror' after 9/11

WASHINGTON - Twenty years after the 9/11 terrorist attacks, widely seen as a turning point in US history, the world's sole superpower has largely failed in its fight against terrorism and extremism.

Under the banner of a global "war on terror," experts have said, Washington has plunged itself into a costly, frustrating quagmire of conflicts and strategic misjudgments, most recently marked by the chaotic and bloody withdrawal from Afghanistan.