New Delhi, Sept. 11 -- The United States is recalling the painful memories of the 9/11 attacks that changed the course of history. Twenty-five years ago, the American nation was hit by a series of attacks orchestrated by the terrorist group al-Qaeda.

"We will never forget," US President Trump said while speaking about the September 11 attacks at a ceremony at the Pentagon.

Trump recounted the stories of several of the victims. "We will never, ever forget," Trump said, according to news agency AP. "That's why we fight today. We don't have a choice," he added.

Trump began his remarks by reflecting on the sense of unity that prevailed across the US following the attacks. "In those harrowing days after the attacks, we saw the authentic spi...