ANNAPOLIS, Md. (AP) — Gov. Martin O’Malley has ordered that flags be flown at half-staff in memory of a general who served at Aberdeen Proving Ground and was killed in Afghanistan.

O’Malley ordered the U.S. and Maryland state flags be lowered from sunrise to sunset on Thursday, the day Maj. Gen. Harold J. Greene will be buried at Arlington National Cemetery.

An Afghan soldier killed Greene and wounded 15 other allied troops on Aug. 5. Greene is the highest-ranked U.S. officer to be killed in combat since 1970 during the Vietnam War.

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