Complex sentence: In May 1980, during the "coup d'état" led by Chun Doo-hwan, Ko was accused of treason and sentenced to twenty years' imprisonment but was released in August 1982 as part of a general pardon.
Split into simpler sentences: In May 1980, during the "coup d'état" led by Chun Doo-hwan, Ko was accused of treason and sentenced to twenty years' imprisonment. He was released in August 1982 as part of a general pardon.