The Korean independence movement was a military and diplomatic campaign to achieve the independence of Korea from Japan. After the Japanese annexation of Korea in 1910, local resistance in Korea culminated in the March 1st Movement in 1919, which was crushed and sent Korean leaders to flee into China. In China, Korean independence activists built ties with the Chinese Nationalist Government which supported their Korean government in exile (KPG). At the same time, the Korean Liberation Army, which operated under the Chinese National Military Council and then the KPG, led attacks against Japan.