The or Oda-Toyotomi period (織田・豊臣時代) or also Shokuhō period (織豊時代) was the final phase of the in Japanese history from 1568 to 1603.
After the outbreak of the Ōnin War in 1467, the power of the Ashikaga Shogunate effectively collapsed, marking the start of the chaotic Sengoku period. In 1568, Oda Nobunaga entered Kyoto to install Ashikaga Yoshiaki as the 15th and ultimately final Ashikaga shōgun. This entrance marked the start of the Azuchi-Momoyama period.
Nobunaga overthrew Yoshiaki and dissolved the Ashikaga Shogunate in 1573, launching a war of conquest to politically unify Japan by force from his base in Azuchi. Nobunaga was forced to commit suicide in the Honnō-ji Incident in 1582. His successor Toyotomi Hideyoshi completed Nobunaga's campaign of unification and enacted reforms to consolidate his rule, marking the end of the Sengoku period. Hideyoshi launched the Japanese invasions of Korea in 1592, but their failure damaged his prestige, and his young son and successor Toyotomi Hideyori was challenged by Tokugawa Ieyasu after Hideyoshi's death in 1598.
The Azuchi–Momoyama period ended with the Tokugawa victory at the Battle of Sekigahara in 1600 – unofficially establishing the Tokugawa Shogunate and beginning the Edo period.Kodansha Encyclopedia of Japan (first edition, 1983), section "Azuchi–Momoyama History (1568–1600)" by George Elison, in the entry for "history of Japan". The Azuchi–Momoyama period encompassed the transition of Japanese society from the pre-modern to the early modern period. The Azuchi–Momoyama period is named after Nobunaga's Azuchi Castle and Hideyoshi's Momoyama Castle, and is also known as the in some Japanese texts, abridged from the surnames of the period's two leaders in on-yomi: for plus for .
Oda Nobunaga begins unification During the last half of the 16th century, a number of daimyōs became strong enough either to manipulate the Ashikaga shogunate to their own advantage or to overthrow it altogether. One attempt to overthrow the bakufu (the Japanese term for the shogunate) was made in 1560 by Imagawa Yoshimoto, whose march towards the capital came to an ignominious end at the hands of Oda Nobunaga in the Battle of Okehazama. In 1562, the Tokugawa clan who was adjacent to the east of Nobunaga's territory became independent of the Imagawa clan, and allied with Nobunaga. The eastern territory of Nobunaga was not invaded by this alliance. He then moved his army west. In 1565, an alliance of the Matsunaga and Miyoshi clans attempted a coup by assassinating Ashikaga Yoshiteru, the 13th Ashikaga shōgun. Internal squabbling, however, prevented them from acting swiftly to legitimatize their claim to power, and it was not until 1568 that they managed to install Yoshiteru's cousin, Ashikaga Yoshihide, as the next shōgun. Failure to enter Kyoto and gain recognition from the imperial court, however, had left the succession in doubt, and a group of bakufu retainers led by Hosokawa Fujitaka negotiated with Nobunaga to gain support for Yoshiteru's younger brother, Yoshiaki.
Nobunaga, who had prepared over a period of years for just such an opportunity by establishing an alliance with the Azai clan in northern Ōmi Province and then conquering the neighboring Mino Province, now marched toward Kyoto. After routing the Rokkaku clan in southern Ōmi, Nobunaga forced the Matsunaga to capitulate and the Miyoshi to withdraw to Settsu. He then entered the capital, where he successfully gained recognition from the emperor for Yoshiaki, who became the 15th and last Ashikaga shōgun.
Nobunaga had no intention, however, of serving the Muromachi bakufu, and instead now turned his attention to tightening his grip on the Kinai region. Resistance in the form of rival daimyōs, intransigent Buddhist monks, and hostile merchants was eliminated swiftly and mercilessly, and Nobunaga quickly gained a reputation as a ruthless, unrelenting adversary. In support of his political and military moves, he instituted economic reform, removing barriers to commerce by invalidating traditional monopolies held by shrines and guilds and promoting initiative by instituting free markets known as rakuichi-rakuza.
The newly installed shōgun Ashikaga Yoshiaki also was extremely wary of his powerful nominal retainer Nobunaga, and immediately began plotting against him by forming a wide alliance of nearly every daimyō adjacent to the Oda realm. This included Oda's close ally and brother in-law Azai Nagamasa, the supremely powerful Takeda Shingen, as well as the monk warriors from the Tendai Buddhists monastic center at Mount Hiei near Kyoto (who became the first major casualty of this war as it was completely destroyed by Nobunaga).
As the Oda army was bogged down by fighting on every corner, Takeda Shingen led what was by then widely considered as the most powerful army in Japan and marched towards the Oda home base of Owari, easily crushing Nobunaga's young ally and future shōgun Tokugawa Ieyasu in the Battle of Mikatagahara in 1573.
However, as the Takeda army was on the cusp of obliterating the Oda–Tokugawa alliance, Takeda Shingen suddenly perished, under mysterious circumstances. (Multiple suggestions for his demise include battlefield death from marksman, ninja assassination, and stomach cancer.) Having suddenly lost their leader, the Takeda army quickly retreated back to their home base in Kai Province.
With the death of Takeda Shingen in early 1573, the "Anti-Oda Alliance" that Ashikaga Yoshiaki created quickly crumbled as Nobunaga destroyed the alliance of the Asakura clan and Azai clan that threatened his northern flank, and soon after expelled the shōgun himself from Kyoto.
Even after Shingen's death, there remained several daimyōs powerful enough to resist Nobunaga, but none were situated close enough to Kyoto to pose a threat politically, and it appeared that unification under the Oda banner was a matter of time.
Nobunaga's enemies were not only other daimyōs but also adherents of a Jōdo Shinshū sect of Buddhism who were of the Ikkō-ikki faction, led by Kōsa. He endured though Nobunaga kept attacking his fortress for ten years. Nobunaga expelled Kennyo in the eleventh year, but, through a riot caused by Kennyo, Nobunaga's territory took the bulk of the damage. This long war was called the Ishiyama Hongan-ji War.
Nobunaga was highly interested in foreign cultures, especially those of western Europe. A significant amount of Western Christian culture was introduced to Japan by missionaries from Europe. From this exposure, Japan received new foods, a new drawing method, astronomy, geography, medical science, and new printing techniques. Most critically, trade with Europe provided Nobunaga's armies with new weapons, among them the matchlock rifle or arquebus.
Nobunaga decided to reduce the power of the Buddhist monasteries, and gave protection to Christianity, although he never converted to Christianity himself. He slaughtered many Buddhist priests who resisted him, and burned their fortified temples.John Whitney Hall, ed. The Cambridge History of Japan, Vol. 4: Early Modern Japan (1991) table of contents
The activities of European traders and Catholic missionaries (Alessandro Valignano, Luís Fróis, Gnecchi-Soldo Organtino) in Japan saw one of the earliest relatively numerous increase of Europeans into the region.All Illustrated Encyclopedia, ed. Japanese History:11 Experts Reflect on the Past (1996), Kodansya International.Inc
During the period from 1576 to 1579, Nobunaga constructed, on the shore of Lake Biwa at Azuchi, Azuchi Castle, a magnificent seven-story castle that was intended to serve not simply as an impregnable military fortification, but also as a sumptuous residence that would stand as a symbol of unification.
Having secured his grip on the Kinai region, Nobunaga was now powerful enough to assign his generals the task of subjugating the outlying provinces. Shibata Katsuie was given the task of conquering the Uesugi clan in Etchū, Takigawa Kazumasu confronted the Shinano Province that a son of Shingen, Takeda Katsuyori governed, and Hashiba Hideyoshi was given the formidable task of facing the Mōri clan in the Chūgoku region of western Honshū.
In 1575, Nobunaga won a significant victory over the Takeda clan in the Battle of Nagashino. Despite the strong reputation of Takeda's samurai cavalry, Oda Nobunaga embraced the relatively new technology of the arquebus, and inflicted a crushing defeat. The legacy of this battle forced a complete overhaul of traditional Japanese warfare.
In 1582, after a protracted campaign, Hideyoshi requested Nobunaga's help in overcoming the resistance of the Mōri clan. Nobunaga, making a stop-over in Kyoto on his way west with only a small contingent of guards, was attacked by one of his own disaffected generals, Akechi Mitsuhide, and committed suicide.
Hideyoshi completes the unification
What followed was a scramble by the most powerful of Nobunaga's retainers to avenge their lord's death and thereby establish a dominant position in negotiations over the forthcoming realignment of the Oda clan. The situation became even more urgent when it was made known that Nobunaga's oldest son and heir, Nobutada, killed himself, leaving the Oda clan with no clear successor.
Quickly negotiating a truce with the Mōri clan before they could learn of Nobunaga's death, Hideyoshi now took his troops on a forced march toward his adversary, whom he defeated at the Battle of Yamazaki less than two weeks later.
Although a commoner who had risen through the ranks from foot soldier, Hideyoshi was now in a position to challenge even the most senior of the Oda clan's hereditary retainers, and proposed that Nobutada's infant son, Sanpōshi (who became Oda Hidenobu), be named heir rather than Nobunaga's adult third son, Nobutaka, whose cause had been championed by Shibata Katsuie. Having gained the support of other senior retainers, including Niwa Nagahide and Ikeda Tsuneoki, Sanpōshi was named heir and Hideyoshi appointed co-guardian.
Continued political intrigue, however, eventually led to open confrontation. After defeating Shibata at the Battle of Shizugatake in 1583 and enduring a costly but ultimately advantageous stalemate with Tokugawa Ieyasu at the Battle of Komaki and Nagakute in 1584, Hideyoshi managed to settle the question of succession for once and all, to take complete control of Kyoto, and to become the undisputed ruler of the former Oda domains. The daimyō of the Shikoku Chōsokabe clan surrendered to Hideyoshi in July, 1585, and the daimyō of Kyushu Shimazu clan also surrendered two years later. He was adopted by the Fujiwara clan, given the surname Toyotomi, and granted the superlative title kanpaku, representing civil and military control of all Japan. By the following year, he had secured alliances with three of the nine major daimyō coalitions and carried the war of unification to Shikoku and Kyushu. In 1590, at the head of an army of 200,000, Hideyoshi defeated the Later Hōjō clan, his last formidable rival in eastern Honshū in the siege of Odawara. The remaining daimyō soon capitulated, and the military reunification of Japan was complete.
Japan under Hideyoshi
Land survey With all of Japan now under Hideyoshi's control, a new structure for national government was set up. The country was unified under a single leader, but daily governance remained decentralized. The basis of power was distribution of territory as measured by rice production, in units of koku. A national survey from 1598 was instituted, with assessments showing the national rice production at 18.5 million koku, 2 million of which was controlled directly by Hideyoshi himself. In contrast, Tokugawa Ieyasu, whom Hideyoshi had transferred to the Kanto region, held 2.5 million koku. The surveys, carried out by Hideyoshi both before and after he took the title of taikō, have come to be known as the "Taikō surveys" (Taikō kenchi).
Control measures