Afterward he undergone military training and became member of Hei Ho forces under Japanese occupation in Buru island.

[2] At the end of the Second World War, Headquarter of Japanese forces in Ambon was isolated and its communication with the surrounding regions were cut.

Information about the war and Indonesia independence proclamation only reached Ambon in Mei 1946, when ALRI expedition forces to Moluccas consisting two ships under Indonesian flag of KM Sindoro commanded by Ibrahim Saleh and first officer Yosaphat Sudarso and KM Semeru commanded by Moelyadi arrived 500 m of the coast of Namlea the main city in Buru island.

[2] On 8 April 1946, the citizens of Namlea were told to clean the street as Resident of Moluccas Van Ball will be visiting the town.

Forces under Dimara and Papilaya consisting a total of about 300 people disguised as street cleaner, before eventually attacked police posts.

Afterward he alongside Abdullah Kaban dan Adam Patisahursiwa went to Sanama Island although promptly captured and were taken to Pohon Pale prison.

In July 1946 in a military trial in Batu Gajah, Ambon under chief judge Van der Room, he was sentenced to 20 years in prison.

Fearing his safety, Dimara alongside a couple other notable Indonesian revolution individuals fled to Makassar and joined Pattimura Battalion under Major Pieters.

During this time Buru was under the control of sergeant major Liestieka former member of green beret KNIL with forces of about 150 men.

After Dimara recovered he went to Jakarta and live in the house of King of Sekar, Machmud Singgirei Rumagesan, which at the time became member of National Advisory Council (DPA).

As a serviceman of the Indonesian National Armed Forces (as part of the Indonesian Army), he led 42 members team on a 17 October 1954 infiltration mission to Papua that managed to abduct the Dutch police officer Sergeant van Krieken when a lone Dutch patrol was spotted and other police officers jump the ship to flee.

[1] In 1955 he was instrumental in Benyamin Felubun setting up Untuk Pembebasan Irian (UPI) from Digul prison that eventually became PSP-45 in the succeeding years.

The content of the agreement ultimately required the Dutch Kingdom to be willing to surrender West Papua to the government of Indonesian Republic, effective 1 May 1963.

Thus, the West Irian Liberation Monument built in honor of the integration of Papua is less than 1.5 kilometres (0.9 mi) from Merdeka Palace at the grounds of Lapangan Banteng.

As a result, Sukarno pushed for extraordinary commissioning for Dimara as an army Major, becoming the only person in Indonesian military with such a fast promotion from the ranks of the senior enlisted.