A military judge has found Pfc. Bradley Manning, accused of the largest leak of classified information in U.S. history, not guilty of aiding the enemy -- a charge that would have carried a maximum sentence of life in prison, according to CNN.

Manning was also found not guilty of unauthorized possession of information relating to national defense.

He was found guilty of most of the remaining charges against him, with the judge accepting some of the guilty pleas he made previously to lesser charges.

The sentencing phase of the court-martial is expected to begin Wednesday, July 31.

He could be sentenced to up to 20 years behind bars on some of the other charges.