The story

President Barack Obama has approved a significant troop increase for Afghanistan, Pentagon officials said Tuesday.

The new troop deployment is expected to include 8,000 Marines from Camp Lejeune, North Carolina, as well as 4,000 additional Army troops from Fort Lewis, Washington.

"This increase is necessary to stabilize a deteriorating situation in Afghanistan, which has not received the strategic attention, direction and resources it urgently requires," Obama said in a written statement. Read full article »

CNN's Adam Levine and Mike Mount contributed to this report.

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