Washington, D.C. ? The United States will change the way its forces are arrayed in Afghanistan as part of an overhaul of U.S. strategy in the flagging war, a senior defense official said Friday.

President Barack Obama is expected to unveil a revamped plan for fighting insurgents in Afghanistan and Pakistan next week. The official, who spoke on condition of anonymity because the review is not complete, said it would call for new garrisons in far-flung Afghan communities.

That would help the U.S. hold ground against a resurgent Taliban-led insurgency, the official said. Under today’s hub-and-spoke system, U.S. forces leave protected bases to conduct anti-insurgent operations. When they leave, insurgents come back.