This study seeks a military review of the war between the Silla-Tang allied forces and Baekje. From June 21 to July 10, 660, the Tang army attacked the Baekje naval warehouse to secure insufficient food. Afterwards, it was misguidedly maneuvered toward Gongju. Afterwards, while sailing off the coast, the tribute unit was maneuvered in the direction of Garimseong Fortress in the Boryeong area. Sojeongbang, the main force, landed in the area of Seokseongcheon, not in the sea off Seocheon. The Tang and Silla armies joined from Hyeonnae-ri, Seokseong-myeon, not from Ganggyeong. Silla's 50,000 troops moved to Icheon, Gyeonggi-do, under the direction of the Tang Dynasty. As a result, this was a double operation that the Baekje army deceived.
Baekje confirmed the movement of the Silla army's Namcheonjeong Pavilion and mobilized troops. When the Tang army attacked the Baekje naval warehouse, they mistook it as an attack from the north and sent their main forces north. Therefore, Baekje sent 5,000 troops to the battle of Hwangsan Beol and lost. The Tang army fought and lost in Seokseongcheon. When the Nadang Allied Forces attacked, King Uija fled to Woongjin Castle. However, due to Woongjin Castle's rebellion, King Uija surrendered. Baekje surrendered, but the Baekje army, which was sent to the north, continued the Baekje Revival War for three years and four months. The battle was carried out until November 662, the second and third direct attacks by Baekje's Ministry. When the Nadang army came to the offensive, they united with the Japanese and greatly lost the Battle of Baekgang-gu, and finally collapsed in November 663.