In 1570, Nobunaga ODA, whose goal was the integration of Japan, ordered Hongwan-ji Temple to withdraw from the moated castle city Ishiyama, a the headquarters of the Jodo Shinshu sect's lay follower groups and a strategic point against western Japan, which led to a war (the Ishiyama War).
元亀元年（1570年）　天下統一を目指す織田信長が、一大勢力である浄土真宗門徒の本拠地でありかつ西国への要衝でもあった環濠城塞都市石山からの退去を命じたため、戦いに発展する（石山合戦）。