Japan's four main islands, from Chōsokabe Motochika. Toyotomi's forces arrived 113,000 strong under Toyotomi Hidenaga, Toyotomi Hidetsugu, Ukita Hideie and the Mōri clan's "Two Rivers", Kobayakawa Takakage and Kikkawa Motoharu. Opposing them were 40,000 men of Chōsokabe's. Despite the overwhelming size of Hideyoshi's army, and the suggestions of his advisors, Motochika chose to fight to defend his territories. The battles culminated in the siege of Ichinomiya Castle, which lasted for 26 days. Chōsokabe made a half-hearted attempt to relieve his castle from the siege, but surrendered in the end. He was allowed to keep Tosa Province, while the rest of Shikoku was divided among Hideyoshi's generals. Toyama Campaign During the late summer of August 1585, Hideyoshi launched an attack on Etchū Province and Hida Province. Toyotomi Hideyoshi dispatched Kanamori Nagachika to destroy the Anegakōji clan of Hida and he carried out the siege of Toyama Castle. The Toyama Castle garrison was led by Sassa Narimasa, one of his former allies many years back. Hideyoshi led his army of around 100,000 soldiers against the 20,000 men of the Sassa Narimasa forces; in the end, Narimasa's defense was shattered, opening the way for Toyotomi's supremacy over Etchū Province and Hida Province. Kyushu Campaign In 1586 Toyotomi Hideyoshi conquered Kyūshū, wresting control from the Shimazu clan. Toyotomi Hidenaga, half-brother to Hideyoshi, landed to the south of Bungo on Kyūshū's eastern coast. Meanwhile, Hideyoshi took his own forces down a more western route, in Chikuzen Province. Later that year, with a total of 200,000 soldiers against the 30,000 men of the Shimazu forces, the two brothers would meet up in the Shimazu home province of Satsuma. They besieged Kagoshima castle, the Shimazu clan's home. The Shimazu surrendered, leaving Hideyoshi to return his attention to the Hōjō clan of Kantō, the last major clan to oppose him. Later in 1587, Hideyoshi banished Christian missionaries from Kyūshū, to exert greater control over the Kirishitan daimyō. However, since he did much trade with Europeans, individual Christians were overlooked unofficially. Sword Hunt In 1588, Hideyoshi forbade ordinary peasants from owning weapons and started a sword hunt to confiscate arms. The swords were melted down to create a statue of the Buddha. This measure effectively stopped peasant revolts, and ensured greater stability at the expense of freedom of the individual daimyō. Odawara Campaign In 1590, Hideyoshi carried out the Odawara Campaign against the Hōjō clan in the Kantō region.