The proclamation of the Independence of Indonesia as a governmental act bears a highly fundamental function in terms of the establishment of its identity and sovereignty. This article explores the practical and juridical consequences of the proclamation both as a legal and political act. As a political statement, the proclamation effectively changed the fate of the Indonesian people embodying their rejection of colonialism, a practice viewed as inconsistent with humanity and fairness. As a legal event, the proclamation accorded the country a new legal status as an independent state with a sovereign government, legal order and legal certainty under an autonomous and free governance regime.