Original sentence: The Joseon court, dominated by anti-Manchu hawks, rejected the demand.Traumatic memories of the Jurchen raids on Japan in the 1019 Toi invasion, the Mongol invasions of Japan in addition to Japan viewing the Jurchens as "Tatar" "barbarians" after copying China's barbarian-civilized distinction, may have played a role in Japan's antagonistic views against Manchus and hostility towards them in later centuries such as when the Tokugawa Ieyasu viewed the unification of Manchu tribes as a threat to Japan
Edited sentence: The Joseon Court, dominated by anti-Manchu hawks, rejected the demand.Traumatic memories of the Jurchen raids on Japan in the 1019 Toi invasion, the Mongol invasions of Japan in addition to Japan viewing the Jurchens as "Tatar" "barbarians" after copying China's barbarian-civilized distinction, may have played a role in Japan's antagonistic views against Manchus and hostility towards them in later centuries such as when the Tokugawa Ieyasu  viewed the unification of Manchu tribes as a threat to Japan