U.S. Marines tear down a mud wall next to a compound which they will use as a base in the village of Sorkhdoz in Helmand River Valley, July 2, 2009. Thousands of U.S. Marines stormed deep into Taliban territory in an Afghan valley on Thursday, marking the start of a major new effort by the Obama administration to regain the initiative in the war. The Marines met little resistance on day one of Operation Khanjar, or Strike of the Sword, to seize almost all the lower Helmand River valley, heartland of the Taliban insurgency and the world's biggest opium poppy producing region. Reuters Pictures 5 months ago

U.S. Marines tear down a mud wall next to a compound which they will use as a base in the village of Sorkhdoz in Helmand River Valley, July 2, 2009. Thousands of U.S. Marines stormed deep into Taliban territory in an Afghan valley on Thursday, marking the start of a major new effort by the Obama administration to regain the initiative in the war. The Marines met little resistance on day one of Operation Khanjar, or Strike of the Sword, to seize almost all the lower Helmand River valley, heartland of the Taliban insurgency and the world's biggest opium poppy producing region.