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Head of Argentina's army, Cesar Milani, steps down; long accused of human rights violations

FILE - In this March 1, 2015 file photo, Gen. Cesar Milani arrives to Congress for the inauguration ceremony of the 2015 legislative year in Buenos Aires, Argentina. Milani, head of Argentina's army who's under investigation over his alleged role in the forced disappearance of a soldier during the country's 1976-1983 dictatorship, has asked for retirement on Tuesday, June 23, 2015. (AP Photo/Rodrigo Abd, File)

FILE - In this March 1, 2015 file photo, Gen. Cesar Milani arrives to Congress for the inauguration ceremony of the 2015 legislative year in Buenos Aires, Argentina. Milani, head of Argentina's army who's under investigation over his alleged role in the forced disappearance of a soldier during the country's 1976-1983 dictatorship, has asked for retirement on Tuesday, June 23, 2015. (AP Photo/Rodrigo Abd, File)  (The Associated Press)

The head of Argentina's army, long accused of human rights violations, has resigned.

A brief army statement issued Tuesday says Maj. Gen. Cesar Milani submitted his resignation for personal reasons.

The 60-year-old Milani has been charged in the disappearance of soldier Alberto Ledo in 1976 in the northern province of Tucuman and with torturing two members of the same family in the northeastern province of La Rioja. The cases have yet to be tried in court. Milani denies the allegations.

President Cristina Fernandez's decision in 2013 to name him head of the army was sharply criticized by human rights groups.

Thousands of people were killed or disappeared during the South American nation's military dictatorship between 1976 and 1983. In the late 1970s, Milani was a lieutenant and intelligence expert.