The Indonesian National Revolution was a struggle for independence from Dutch colonial rule that took place between 1945 and 1949. Following Japan's occupation during World War II, Indonesian nationalists declared independence on August 17, 1945, led by figures like Sukarno and Mohammad Hatta. The revolution involved armed conflict and diplomatic negotiations as Indonesians sought to establish a sovereign nation. The conflict saw the emergence of various military and political groups, including the Indonesian National Army. The Dutch initially attempted to regain control, leading to a series of confrontations. Ultimately, international pressure and the desire for self-determination led to the recognition of Indonesia's independence on December 27, 1949.