Amy Murray at home with her daughter Harper in Oceanside, Calif. Her husband, Capt. Patrick Murray, with the Darkhorse battalion, returned home from Afghanistan, in April 2011; 25 Marines from his unit did not.

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U.S. Marines with 3rd Battalion, 5th Regiment and the Afghan National Army provide cover as they move out of a dangerous area after taking enemy sniper fire during a security patrol in Sangin, Afghanistan, in November 2010. During its seven-month deployment, the 3/5 sustained the highest casualty rate of any Marine unit during the Afghan war, losing 25 men.

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Lt. Col. Jason Morris pays his respects at a memorial service in Sangin, Afghanistan, on Nov. 26, 2010, for three Marines who were killed: Lance Cpl. Brandon Pearson, Lance Cpl. Matthew Broehm and 1st Lt. Robert Kelly. Morris commanded a battalion in volatile Helmand province that suffered the highest casualty rate of any Marine unit in the Afghanistan War.

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Marines with 3rd Battalion, 5th Marine Regiment, kneel before battlefield memorials for their fallen brothers during a farewell ceremony, Oct. 30, 2010.

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A U.S. Marine Osprey at Camp Leatherneck in southern Afghanistan. The aircraft suffered multiple problems when it was being developed, but is now getting praise from those flying it.

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Secretary of State Hillary Clinton speaks in Islamabad Friday, as Pakistan Foreign Minister Hina Rabbani Khar looks on. Clinton urged Pakistan to act swiftly to dislodge the militant Haqqani network.

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The assassination of Ahmed Wali Karzai (center, shown in 2009), the half-brother of Afghan President Hamid Karzai, prompted fears of a security breakdown in the southern Afghan city of Kandahar. Ahmed Wali Karzai was rumored to have a hand in everything that went on in the region: tribal affairs, politics and business.

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Afghanistan's Panjwai district, southwest of Kandahar city, was a Taliban stronghold until the U.S. troop surge in 2010 began to displace the insurgents.

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