With the Minangkabau territories now under the control of the Dutch, transportation systems were improved and economic exploitation was intensified. New forms of education were introduced, allowing some Minangkabau to take advantage of a modern education system. The 20th century marked a rise and cultural and political nationalism, culminating in the demand for Indonesian independence. Later rebellions against the Dutch occupation occurred such as the 1908 Anti-Tax Rebellion and the 1927 Communist uprising. During World War II the Minangkabau territories were occupied by the Japanese, and when the Japanese surrendered in August 1945 Indonesia proclaimed independence. The Dutch attempts to regain control of the area were ultimately unsuccessful and in 1949 the Minangkabau territories became part of Indonesia as the province of Central Sumatra.