Le Hoan was the commander of the capital's guards of the Dinh Dynasty. After the Dinh Emperor and his son were assasinated, his youngest son was only 6 years old. At the same time, once they heard that the Dinh Emperor was dead, the Chinese (Sung Dynasty) began to mobilize troops to invade Vietnam. Le Hoan was ordered to command troops to repel the Chinese. His generals and troops thought that even if they had won the war, no body would reward them, since the new Emperor was only 6 years old, what did he know? Therefore, they requested that Le Hoan took over the throne and led them to battle. Le Hoan then proclaimed himself Dai Hanh Emperor.

Emperor Dai Hanh was a great warrior and a magnificent ruler. He personally led troops to fight against the Chinese and badly defeated them. After defeating the Chinese, he turned to the South and invaded Champa, since this country imprisoned his messenger when he sent him there. His army captured Champa's capital and thousands of prisoners. After Champa, he pacified the mountainous war lords around the nation. Not only he was undefeated in battles, he was a good ruler too. During his reign, he composed a code of law, trained the army, and improved the economy and farming.

Very few. For his accomplishments I would give him a 9 out of 10 rating.