He was the Commander of the Royal Thai Air Force from 1989 to 1992 and briefly held Thailand's most senior military post, the Supreme Commander of the Royal Thai Armed Forces from April to July 1992.

[1] Kaset was an alumnus of the 5th Class of the Chulachomklao Royal Military Academy, and one of the leaders of the National Peace Keeping Council's 1991 coup against the government of Chatichai Choonhavan.

After the coup he became head of Thai Airways International, and co-founded the pro-military Justice Unity Party.

As head of Thai Airways International, he famously noted that "we have received a lot of complaints that our air hostesses are not pretty enough—too old and unsmiling.

He noted that he had ordered airline recruiters to screen flight attendant applications "in the way beauty-pageant judging panels select contestants.