A career soldier, Untung was the first officer parachuted into Western New Guinea in 1962 at the start of President Sukarno's efforts to expel the Dutch forces who still controlled it.
The theory presented by Ruth McVey and Benedict Anderson contradicts Roosa's claim which is built entirely on circumstantial evidence.
[9] Lt Gen Ahmad Yani, who was killed by the troops of the 30 September Movement, had been Untung's commanding officer when they served in a raider unit.
Brigadier General (then Colonel) Sarwo Edhie Wibowo, commander of the RPKAD para-commando regiment, which played a key role in quashing the coup attempt had been responsible for Untung's paratrooper training.
Brigadier General, Kemal Idris, whose troops crushed the coup attempt in northern Sumatra as commandant of Kodam I/Bukit Barisan, was a guest at Untung's wedding.