UnScramble this Word: t e d s i o u?

Questions

In 1969 Libyan revolution, Col Moammar Gadhafi deposes King---------- . ?

In 1979 ---------- makes 1st fly-by of Saturn, discovers new moon, rings. ?

In 1982 ---------- leaves Lebanon. ?

In 1982 Palestinian Liberation Organization leaves---------- . ?

In 1983 Korean ---------- strays into Siberia and is shot down by a Soviet jet. ?