Burma's path to independence began with growing nationalist sentiments during the late 19th and early 20th centuries. British rule, established in the 19th century through annexation, faced increasing resistance from various ethnic groups and political parties. The turning point came during World War II when the country experienced occupation by Japan, which awakened a stronger demand for self-governance. Aung San emerged as a prominent figure in the fight for independence and was instrumental in forming the Anti-Fascist People's Freedom League, coordinating various nationalist factions under a unified front against colonial rule. After the war, negotiations with the British began, culminating in a commitment to grant Burma independence. The formal agreement allowed for a peaceful transition of power, and major transitional milestones included the formation of a new constitution and the establishment of a parliamentary system. On 4 January 1948, Burma officially declared independence, celebrating it as a significant achievement of national unity and strength, with widespread public enthusiasm and participation in the festivities. Aung San addressed the nation, emphasizing unity and the need for cooperation among the diverse ethnic groups within the newly independent state.