Former Rep. Tulsi Gabbard (D-HI), a United States Army Reserve officer, on Sunday weighed in on the U.S. withdrawal out of Afghanistan.

According to Gabbard, the mission in Afghanistan in response to the 9/11 attacks was effective in defeating al-Qaeda. She added that what went wrong was the nation’s leaders “lost sight” of the mission there.

“Our mission to enter Afghanistan, initially, to go after al-Qaeda, the jihadist terrorists who attacked us on 9/11, declared war against us was justified,” Gabbard outlined on Fox News Channel’s “Sunday Night in America.”

“We sent special forces in there who very expeditiously and successfully defeated al-Qaeda in a short time,” she continued. “What went wrong after that was when leaders in our country lost sight of that very direct and vital mission and instead started to embark on regime change, wars and nation-building exercises. And as we’ve seen over last 20 years in Afghanistan, specifically, even senior leaders in our government across Democrat and Republican administrations didn’t know what your mission there was.”

Gabbard then warned of the danger she sees posed by Pakistan, which she noted supported the Taliban.

“Pakistan nas has a nuclear arsenal, so the problem that we’re seeing, the threat that we face, the danger there, given these alliances, given the ideology that’s fueling them, ought to be a grave concern to our country,” she advised.