On 10 November 1945 the army and militia of newly independent Republic of Indonesia fought a fierce battle in Surabaya, East Java, against the British military forces who tried to help the Dutch re-conquer its former South East Asian colony.
Although the Indonesian side suffered military defeat and loose many men & weapons, the battle has strengthened the new nation’s determination for independence and garnered international attention on Indonesia.
For the Dutch, it removed any doubt that Indonesia was not a gang of collaborators that has no popular support. It also had the effect of convincing Britain that wisdom laid on the side of neutrality in Indonesia’s struggle for independence.
Considering the above mentioned facts, every 10 November has been commemorated as Indonesia’s National Heroes Day.