Empress Jingu vs King Munmu

According to the Nihon Shoki, Empress Jingu led a naval expedition to the Korean peninsula and conquered the kingdoms of Silla, Baekje, and Goguryeo. This legendary campaign is said to have established Japanese dominance in Korea for several centuries, though archaeological evidence is lacking.

After her legendary conquest, Empress Jingu is said to have returned to Japan with tribute from the Korean kingdoms, including gold, silver, and textiles. This event is recorded as a triumph that enriched the Yamato court and solidified her reputation as a warrior ruler.

Empress Jingu is said to have served as regent for her son, Emperor Ojin, after her husband's death. Her regency is credited with maintaining stability and continuing the expansion of Yamato influence, though the historical accuracy of her rule is disputed.

Silla forces under King Munmu (then Prince) allied with Tang China to defeat the Baekje army at Hwangsanbeol. This victory led to the fall of the Baekje kingdom, a key step toward unification.

Silla forces under King Munmu, in coordination with Tang China, defeated the Goguryeo army at the Salsu River. This victory resulted in the fall of Goguryeo, completing the unification of the Three Kingdoms under Silla.

After the fall of Goguryeo, Tang China attempted to establish control over the Korean peninsula. King Munmu led Silla forces in a war against Tang, successfully expelling Chinese forces and securing Silla's dominance over the unified territory.

King Munmu formally established the Unified Silla Kingdom after expelling Tang forces. This marked the first time the Korean peninsula was unified under a single indigenous ruler, creating a period of peace and cultural flourishing.