Original sentence: In 1985 and 1987, USSR-owned helicopters in the Afghanistan theatre of operations defected to Pakistan.Viktor Ivanovich Belenko (Виктор Иванович Беленко) (born February 15, 1947) is an American aerospace engineer and lecturer of Soviet origin
Edited sentence: Belenko is senteced to death in the Soviet Union for a state treason.However, his trip to Russia has never been confirmed by independence sources.Viktor Ivanovich Belenko (Виктор Иванович Беленко) (born February 15, 1947) is a pilot and a  traitor  of Soviet origin