Washington (CNN) President Barack Obama's administration is planning to train Sunni tribes' fighters as part of its move to send up to 450 additional U.S. forces to Iraq, the White House said Wednesday.

The United States is also sending weapons to Sunni tribes, as well as the Kurdish Peshmerga fighters, who are operating under Iraqi command, in order to fight the Islamic State in Iraq and Syria.

The hope, an Obama administration official said, is that a new "Sunni uprising" similar to one that took place in 2013 will occur - but this time, aimed at Islamic State fighters.

"This is designed to focus on training the Sunnis," the official said.

The additional U.S. military personnel will train and advise Iraqi and tribal troops at the Taqaddum military base in eastern Anbar province.

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