The siege of Baler (Filipino: Pagkubkob sa Baler; Spanish: Sitio de Baler) was a battle of the Philippine Revolution. Filipino revolutionaries laid siege to a fortified church manned by Spanish troops in the town of Baler, Aurora, for 337 days, from 1 July 1898 until 2 June 1899. The war had ended with the Treaty of Paris on 10 December 1898, with Spain's surrender and cession of claims over the Philippines to the United States. Cut off from communications with their own government and military, the Spanish forces in Baler continued their defense against the Filipino forces until 1899.