Indonesian People's Revolutionary Front On 12 October 1945, Sutomo founded and became a leader of ''Indonesian People's Revolutionary Front'' (), abbreviated as
BPRI, is an Indonesian
militia, with its headquarters in
Surabaya. BPRI was aimed at realizing and defending the
Proclamation of Indonesian Independence, they rallied the people's resistance against the Dutch who wanted to reign Indonesia after the
Surrender of Japan in
World War II. During the
Netherlands Indies Civil Administration (NICA) occupation, in the early stages of the
Indonesian National Revolution, in the
Bersiap period, Sutomo encouraged atrocities against
Indonesians of mixed European–Asian ancestry and personally supervised the
summary executions of hundreds of civilians. These are archived eye witness testimony of the events of 22 October 1945.
Battle of Surabaya When the battle broke out in
Surabaya between Indonesian nationalists and
British forces, he gave rousing speeches. Although the fighting ended in defeat for the Indonesians, the battle served to galvanise Indonesian and international opinion in support of the independence cause. Sutomo spurred thousands of Indonesians to action with his distinctive, emotional speaking-style of his radio broadcasts. His "clear, burning eyes, that penetrating, slightly nasal voice, or that hair-raising oratorical style that second only to Sukarno's in its emotional power". There are conflicting accounts of Sutomo's whereabouts during the battle. His son claimed that he participated in the battle, but
K'tut Tantri wrote in several books that he moved to
Malang so he could continue giving radio speeches. The battle for Surabaya was the bloodiest single engagement of the war, and demonstrated the determination of the rag-tag nationalist forces; their sacrificial resistance became a symbol and rallying cry for the revolution. 10 November 1945, the peak of the Battle of Surabaya, was later known as
Hari Pahlawan (Heroes’ Day), to commemorate and honor the struggles of heroes and fighters in defending Indonesian independence. == Post-independence ==