The Anarchy of the 12 Warlords, also the Period of the 12 Warlords, was a period of chaos and civil war in the history of Vietnam, from 944 to 968 caused by the succession of the Ngô Dynastyafter the death of King Ngô Quyền. This period is also sometimes simply called the Twelve Warlords.
History
In 939, Ngô Quyền became King ofTĩnh Hải quân after defeating the Southern Han and declaring independence from centuries of Chinese rule. After Ngô Quyền's death in 944, his brother-in-law Dương Tam Kha, who was to serve as regent to the king's son Crown Prince Ngô Xương Ngập, usurped the throne and proclaimed himself king under the title Dương Bình Vương, ruling from 944 to 950. As a result, Crown Prince Ngô Xương Ngập fled and hid in the countryside. The prince's younger brother, Prince Ngô Xương Văn became the adopted son of Dương Tam Kha. Because of the illegitimate accession of Dương Tam Kha, many local lords rebelled by seizing power of their local governments and creating conflicts with the Dương court. King Dương Tam Kha sent an army led by Prince Ngô Xương Văn to suppress the rebellion. However, with the army at his command, the prince staged a coup d'état in 950. Rather than administering a harsh punishment, Ngô Xương Văn forgave Dương Tam Kha and demoted him to the title of "Lord". Ngô Xương Văn was then crowned king under the title "Nam Tấn Vương", and sent envoys in search for his refuged older brother, Ngô Xương Ngập. In 951, Ngô Xương Ngập returned to Cổ Loa and was crowned king under the title "Thiên Sách Vương", and with his brother became a co-ruler of the Tĩnh Hải Quân. However, the co-rulership was short-lived, as the elder brother King Ngô Xương Ngập died of illness in 954. Despite the return of the legitimate heirs to the throne, rebellions continued to afflict the country. In 965, in an attempt to quell a rebellion, King Ngô Xương Văn was killed in Bố Hải Khẩu by his subordinate general, Lã Xử Bình. Lã Xử Bình then took control of the royal capital at Cổ Loa. Prince Ngô Xưong Xí, the son of King Ngô Xương Văn, inherited the throne, but he could not maintain his father's authority. He retreated to the area of Bình Kiều and established his power base there. When the Ngô Dynasty collapsed under Lã Xử Bình's rebellion, Tĩnh Hải Quân became a power vacuum and divided into 12 domains where each was administered by a powerful warlord converging into three main factions during the conflict: the Ngô Dynasty royalists under Ngô Xương Xí; military junta under Lã Xử Bình in Cổ Loa; and the regional governorship under Trần Lãm. Other minor lords eventually joined in and formed alliances among the three main factions of the conflict. Đinh Bộ Lĩnh, adopted son of Lord Trần Lãm who ruled the region of Bố Hải Khẩu, succeeded Lãm after his death. In 968, Đinh Bộ Lĩnh defeated the other eleven major warlords and reunified the nation under his rule. In the same year, Đinh Bộ Lĩnh ascended the throne, proclaiming himself emperor with the title Đinh Tiên Hoàng, establishing the Đinh Dynasty, and he renamed the nation as Đại Cồ Việt. He moved the capital to Hoa Lư.
Phạm Bạch Hổ referred himself as Phạm Phòng Át, held Đằng Châu, Hưng Yên Province.
Of those, Ngô Xương Xí and Ngô Nhật Khánh were nobles of Ngô Dynasty, Phạm Bạch Hổ, Đỗ Cảnh Thạc, Kiều Công Hãn were officials of Ngô Dynasty. The remainders were considered local landlords or nobles from Northern nations, which was the ancient nations holding what is now China. Recent findings suggest that there was a 13th lord that is not included in the list: Dương Huy, who ruled a region to the South-East of Cổ Loa.
Đinh Bộ Lĩnh
Đinh Bộ Lĩnh used to hold some posts in Hoan Châu, but lost his positions and went back to Hoa Lư in 950. Here, he became an adoptive son and subordinate general to Trần Lãm. Considering Đinh Bộ Lĩnh was most reasonable leader who could manage the circumstances, Trần Lãm retired and gave all power to him. Đinh Bộ Lĩnh led the army to occupy Hoa Lư, which became the national capital under his reign afterward. Đinh Bộ Lĩnh was respected as Vạn Thắng Vương because of the continuous victories. In 968, the era ended and was replaced by the era of the Đinh Dynasty.
Defeating the lords
Đinh Bộ Lĩnh began by defeating Lã Xử Bình in Cổ Loa. The battle with Đỗ Cảnh Thạc in Đỗ Động Giang took over a year, until Đinh Bộ Lĩnh seized the fortress and Đỗ Cảnh Thạc was killed. In Tây Phù Liệt, Nguyễn Siêu lost four of his generals in the first battle with Đinh Bộ Lĩnh. In the second battle, he split his army in half to seek backup. However, their ships were wrecked, upon which Đinh Bộ Lĩnh commanded his soldiers to set fire to the camps of the remaining army. Nguyễn Siêu died. By the beginning of 968, after defeating and killing Nguyễn Thủ Tiệp, Kiểu Công Hãn, Nguyễn Khoan, Kiều Thuận, Lý Khuê, Lã Đường, the war ended and Đinh Bộ Lĩnh successfully united the divided regions. He also convinced Phạm Bạch Hồ, Ngô Xương Xí, and Ngô Nhật Khánh to surrender and join his army.