Chris Perry, Author

Tag: Battle of Okehazama

  • The Third Unified – Tokugawa Ieyasu. Part One.

    The Third Unified – Tokugawa Ieyasu. Part One.

    If the bird will not sing, wait for it to sing.

    The third, and ultimately, final unifier was born Matsudaira Takechiyo in December 1542. His father, Matsudaira Hirotada, is a somewhat mysterious figure, with several theories about the events of his life, and even his death, but what is known with (relative) certainty is that the Matsudaira Clan were the lords of Okazaki Castle in Mikawa Province, which is where Takechiyo (from now on, referred to as Ieyasu) was born.

    At the time of his birth, the Matsudaira Clan were a relatively minor family in the service of the more powerful Imagawa. This was an era of constant civil war, and plots, subterfuge, and outright betrayal were common. To pre-empt this, in 1547, when Ieyasu was about five, he was sent to the Imagawa capital at Sunpu (in modern Shizuoka) as a hostage to secure his father’s loyalty.

    A modern reconstruction of Sunpu Castle.
    江戸村のとくぞう – 投稿者自身による著作物, CC 表示-継承 4.0, https://commons.wikimedia.org/w/index.php?curid=95206213による

    The boy’s escort was entrusted to one Toda Yasumitsu, who promptly betrayed the Imagawa and instead had Ieyasu sent to Oda Nobuhide. Quite why Yastumitsu did this is debated, with some sources saying he sold Ieyasu for 1000 gold pieces (some say 100), and that the Imagawa promptly attacked his castle, and destroyed his family (though other sources say the Toda held out for a year or more).

    Other sources say that the whole thing was actually a ruse arranged by Ieyasu’s father, who had secretly agreed to swear fealty to the Oda and had sent his son as a hostage as proof. It is also suggested that this was the first time Ieyasu met Oda Nobunaga, though historians debate whether the meeting actually took place.

    Oda Nobunaga, who may (or may not) have met Ieyasu during his time as a hostage.

    Despite the somewhat murky circumstances, Ieyasu’s time as a hostage would not last long, as his father soon passed away (the exact date and circumstances are debated), aged around 23-24, and the Lord of the Imagawa, Yoshimoto, arranged a hostage swap that saw Ieyasu brought to Sunpu, where, despite now being the nominal lord of Okazaki, the Imagawa meant to keep a close eye on him.

    This is another page in Ieyasu’s history that the sources disagree on. Some suggest he was still a hostage, whilst others point out that, as the Lord of Okazaki, he was a direct vassal of the Imagawa, and instead, his residence in Sunpu was part of a wider policy of keeping vassals in a central location. Either way, Ieyasu was hardly kept in the dungeons, and in 1557, he married Yoshimoto’s niece, Lady Tsukiyama. (Tsukiyama is a place near Sunpu; her real name is not recorded.)

    Lady Tsukiyama, Ieyasu’s first wife. Her real name may have been Sena, but that name doesn’t appear in the records until 1740, 160 years after her death.

    A marriage to a close relative of Yoshimoto boosted Ieyasu’s standing within the clan, but it may also have played a part in the Imagawa’s own ambitions. For decades, the Kira Clan, descendants of the Ashikaga Shoguns, had held a preeminient position in Mikawa Province. Though not officially governors (shugo) of the Province, their illustrious descent meant that, at least in terms of lineage, they were equals to the Imagawa.

    As we have seen dozens of times before, however, during the Sengoku Jidai, the prestige of an illustrious name wasn’t what it had once been, and the real power in Mikawa lay with the Matsudaira. By binding Ieyasu more closely to his family, Imagawa Yoshimoto sought to use this power to assert Imagawa control over the Province at the expense of the Kira and the other Mikawa Clans.

    Mikawa Province.
    By Ash_Crow – Own work, based on Image:Provinces of Japan.svg, CC BY 2.5, https://commons.wikimedia.org/w/index.php?curid=1683118

    These ‘other clans’ weren’t all that happy to see the Imagawa take over, however. Much like the rest of the realm, the minor lords of Mikawa were an independent-minded bunch and were more content to rule themselves. An initial outbreak of rebellion was crushed in 1557, only to begin again a year later. This time, Yoshimoto dispatched Ieyasu to play a part in putting the rebellion down, and he got his first taste of battle at the Siege of Terabe Castle in March 1558.

    Ieyasu earned praise from Yoshimoto and some of his vassals for his diligent approach to warfare. Later records suggest that he recognised that simply taking Terabe Castle wouldn’t be enough to fully subdue the rebels, so he set about burning the castle town and then several other settlements nearby. This may not sound like praiseworthy behaviour to you and me, but Yoshimoto was so impressed he rewarded Ieyasu with land and a shortsword.

    Imagawa Yoshimoto

    With the rebellion in Mikawa crushed (for now), Ieyasu turned to securing his position as future lord of Okazaki and eventual master of the whole Province. The problem was that Ieyasu was still largely a stranger to the Mikawa Clans. He had been absent from the Province for most of his young life, first a hostage of the Oda, and later residing in the Imagawa Capital at Sunpu.

    To resolve this, Ieyasu issued a seven-point decree outlining his relationship with his vassals. This decree was significant because it made it clear that, should Ieyasu’s vassals feel that he is ruling badly or ignoring their advice, they could appeal to Ieyasu’s father-in-law, Sekiguchi Ujizumi, who remained a powerful figure within the Imagawa Clan hierarchy, suggesting that, at least as late as 1559, Ieyasu intended to remain loyal to the Imagawa.

    A later depiction of a battle in Mikawa Province. Like many minor clans at the time, the warriors of Mikawa were a fiercely independent bunch who would fight viciously to preserve that independence.

    Since the time of Ieyasu’s Grandfather, the Matsudaira of Mikawa Province had been involved in a long-term conflict with the Oda Clan of neighbouring Owari. When the Mikawa and the Matsudaira came under the Imagawa banner, their new overlords inherited the conflict.

    During the rebellion in 1556 and 1558, Oda had supported the anti-Imagawa forces, and Yoshimoto, weary of their interference, made the decision to crush them once and for all, which would have the added bonus of clearing his path to Kyoto. In preparation, Ieyasu was ordered to lead the vanguard and attack several border forts.

    The site of Otaka Castle as it appeared in February 2014.
    Tomio344456 – 投稿者自身による著作物, CC 表示-継承 4.0, https://commons.wikimedia.org/w/index.php?curid=86415730による

    He captured two forts and then lifted the siege of Otaka Castle, making it his temporary base. However, news arrived that Yoshimoto had been defeated and killed in a surprise attack at Okehazama. At that, Ieyasu retreated back to Okazaki to plan his next move. Historians debate whether Ieyasu intended to betray the Imagawa right away, or if the decision was a reaction to events, but in early 1561, he attacked Ushikubo Castle, an Imagawa stronghold in Mikawa, signalling his change of allegiance.

    It is generally accepted that Ieyasu’s change of heart was brought about by the decision of the Imagawa’s new Lord, Ujizane, to prioritise fighting against the Takeda and Hojo, over the Oda, leaving Ieyasu to fend for himself against Oda Nobunaga, who was very much in the ascendancy after his surprising victory at Okehazama.

    A 19th-Century depiction of the Battle of Okehazama, showing Imagawa Yoshimoto (the figure on the left) facing his demise.

    The long standing animosity between Mikawa and Owari meant that neither side found it easy to stomach making peace, however, with Nobunaga facing serious issues against the Saito Clan to the north, and Ieyasu having to deal with the vengeful Imagawa, both sides swallowed their pride, and, in 1562, agreed to the so-called Kiyosu Alliance, bringing into existance one of Japanese history’s most important partnerships.

    Sources
    https://ja.wikipedia.org/wiki/%E5%BE%B3%E5%B7%9D%E5%AE%B6%E5%BA%B7
    https://ja.wikipedia.org/wiki/%E6%B8%85%E6%B4%B2%E5%90%8C%E7%9B%9F
    https://ja.wikipedia.org/wiki/%E7%89%9B%E4%B9%85%E4%BF%9D%E5%9F%8E
    https://ja.wikipedia.org/wiki/%E5%90%89%E8%89%AF%E6%B0%8F
    https://ja.wikipedia.org/wiki/%E4%B8%89%E6%B2%B3%E5%BF%A9%E5%8A%87
    https://ja.wikipedia.org/wiki/%E7%9C%9F%E5%BC%93%E5%B1%B1%E5%9F%8E
    https://ja.wikipedia.org/wiki/%E5%90%89%E8%89%AF%E7%BE%A9%E5%AE%89
    https://ja.wikipedia.org/wiki/%E5%AF%BA%E9%83%A8%E5%9F%8E%E3%81%AE%E6%88%A6%E3%81%84
    https://ja.wikipedia.org/wiki/%E5%BE%B3%E5%B7%9D%E5%AE%9F%E7%B4%80
    https://ja.wikipedia.org/wiki/%E7%AF%89%E5%B1%B1%E6%AE%BF
    https://ja.wikipedia.org/wiki/%E9%96%A2%E5%8F%A3%E6%B0%8F%E7%B4%94
    https://ja.wikipedia.org/wiki/%E6%88%B8%E7%94%B0%E5%BA%B7%E5%85%89
    https://ja.wikipedia.org/wiki/%E7%94%B0%E5%8E%9F%E5%9F%8E_(%E4%B8%89%E6%B2%B3%E5%9B%BD)
    https://ja.wikipedia.org/wiki/%E9%A7%BF%E5%BA%9C
    https://ja.wikipedia.org/wiki/%E6%96%BC%E5%A4%A7%E3%81%AE%E6%96%B9
    https://ja.wikipedia.org/wiki/%E6%9D%BE%E5%B9%B3%E5%BA%83%E5%BF%A0

  • Lords of the East, Part 3

    Lords of the East, Part 3

    First post of 2026, so Happy New Year and thanks for sticking with me!

    The situation in 1560. The Hojo are in Green.
    By Alvin Lee – Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=39200926

    By 1560, the Hojo were masters of much of the Kanto. A series of successful military campaigns over the previous decades had given them control over much of the area that now comprises modern-day Tokyo, Yokohama, and Chiba. Unlike today, when these areas are among the world’s most densely populated megacities, in the 16th century they were largely agricultural, with a few castle towns surrounded by vast expanses of farmland.

    It is also true that economic productivity, such as it was, was measured in rice production, with land being valued according to predicted rice output, though not necessarily actual output. In short, despite being a period of incredible violence, Japanese society relied almost entirely on rice production to function. Famine was a constant problem, and in 1560, the Hojo, despite controlling vast tracts of land, were experiencing just how bad a failed harvest could be.

    The so-called Eiroku Famine (named after the era) left the Hojo with no food or money, and military operations largely ground to a halt. It was a real blow then, when Uesugi Kenshin, at the head of an army of 8000 men, crossed the mountains in the North of the Kanto and invaded Hojo territory. Though the Uesugi army was relatively small, the Kanto region had been ruled by them for decades prior to the Hojo conquests, and when Kenshin appeared, dozens of local clans switched sides and flocked to the Uesugi banner.

    Uesugi Kenshin.

    Kenshin swept all before him; the Hojo lost castles in Kozuke, Shimosa, and Musashi, and by early 1561, the Uesugi had taken Kamakura. Then, at the head of an army that was reported to be 100,000 strong, Kenshin laid siege to Odawara, the Hojo capital. At this point, the Hojo were in real trouble, but fate was on their side. Ironically, the same famine that had left them seriously weakened now proved to be their saviour. An army of that size needs supplies, and there were few enough to be had in the Kanto, so it wasn’t long before the Uesugi began to melt away.

    The fortress of Odawara was one of the strongest in the realm, and with his army already shrinking, Kenshin faced a difficult choice. A long siege might fatally weaken his army, and even a successful assault could prove hugely costly. Then news arrived that his old enemy, Takeda Shingen, had invaded his home province, at the same time as stirring up a rebellion amongst the Ikko-Ikki, forcing Kenshin to return home post-haste.

    The Hojo had been saved by a combination of good luck and excellent timing on the part of Takeda Shingen, and despite their weakened state, Ujiyasu wasted no time in taking advantage of the reprieve. No sooner had Kenshin returned north than Hojo forces began the process of reconquering their lost territory. Most of the smaller clans that had joined the Uesugi now switched their loyalties back to the Hojo. This was a fairly common practice at the time; there were dozens, if not hundreds, of minor clans all over Japan who could never muster the strength to assert themselves against the power of a Daimyo, so their loyalty often proved to be a fickle thing, prioritising flexibility and survival rather than unquestioned loyalty.

    Takeda Shingen

    Not all the clans welcome the return of the Hojo, however, and Ujiyasu was obliged to dispatch armies to retake several castles in northern Musashi, and he won a decisive victory at the Battle of Mt Ikuno in November 1561, reestablishing the line of control along the mountains in the northern Kanto. Over the next two years, two sides form: a Hojo-Takeda Alliance on one side and a Uesugi-Satomi alliance on the other.

    The Hojo would generally have the better of the fighting in the Kanto, but would prove to be unable to advance further north, whilst the Uesugi would be a constant problem, but would struggle to make advances into the Kanto proper. By 1564, the conflict had largely become a stalemate, so Ujiyasu turned his attention to the East and the Satomi, whom he believed to be a weak link in the alliance.

    Though it might have been true that the Satomi were weaker than the Uesugi, they were no soft touch. When the Hojo crossed the Edogawa River on the way to invading Satomi territory, they were ambushed at the second Battle of Konodai and driven back with heavy losses. You may remember in the last post that the lord of the Satomi, Yoshiaki, had avoided the first Battle of Konodai by correctly identifying the weak position of his allies, retreating with his army intact.

    A later depiction of the area around Konodai.

    At the second battle, however, the command fell to Yoshiaki’s son, Yoshihiro, and he decided to celebrate his victory by distributing wine to his men. A party is a common way to celebrate any success, and the Satomi had successfully driven the Hojo back. The problem was that ‘driven back’ does not mean ‘defeated’; the Hojo regrouped and advanced again in the early hours of the following day.

    The Satomi army, now thoroughly inebriated, was no match for them, and Hojo forces forced the Satomi into a chaotic retreat that didn’t end until the Hojo banner was once again flying over most of Kasuza Province. Shortly after this campaign, Ujiyasu, who had already technically retired as lord of the Hojo in 1559, announced that he had fought his last campaign.

    After this, Ujiyasu seems to have largely limited himself to administration, leaving the business of war to his sons, though he would continue to play an important role in his clan’s future. In 1560, the Imagawa, one part of the triple Takeda-Hojo-Imagawa alliance, had been seriously weakened by the defeat at the Battle of Okehazama in 1560. By 1568, they were on their last legs, and Takeda Shingen, despite being a nominal ally, invaded the Imagawa’s home province of Suruga, aiming to take it for himself.

    Suruga Province
    By Ash_Crow – Own work, based on Image: Provinces of Japan.svg, CC BY 2.5, https://commons.wikimedia.org/w/index.php?curid=1691794

    The Hojo, seeking to support the Imagawa and prevent encirclement by a now hostile Takeda, dispatched an army under Hojo Ujimasa to relieve Suruga. At the same time, Ujiyasu engaged in diplomacy with the Tokugawa Clan, who had lands on the other side of Imagawa territory, and had poor relations with the Takeda. A joint attack by the Hojo and Tokugawa convinced Shingen that holding Suruga was impossible in the short term, and he retreated, with the Hojo moving in and taking large parts of eastern Suruga for themselves.

    Despite this success, the Hojo once again found themselves surrounded on three sides by hostile powers: the Takeda to the West, the Uesugi to the North, and the Satomi to the East. Ujiyasu correctly recognised that if he moved to deal with one threat, the other two would take advantage, and the Hojo did not have the strength for a three-front war. Therefore, he decided to make a formal peace with the Uesugi.

    This was unpopular on both sides because the Uesugi had been enemies of the Hojo more or less from the start, and that kind of bad blood isn’t easily forgotten. However, both sides had bigger problems, namely, Takeda Shingen. Though a ceasefire was agreed upon and the border between the two sides set, the consequences for the Uesugi were that many former allies in the Kanto, like the Satomi, felt betrayed and switched to supporting Takeda Shingen.

    This might not have been such a serious problem for the Hojo, because they were going to have fight the Satomi anyway, but in early 1569, the strategic situation shifted again, when the Takeda and Uesugi made a peace between themselves, meaning that Shingen could now focus his entire strength on the Hojo, whilst also relying on support from the Satomi, and other Kanto clans.

    An image depicting the legendary rivalry between Uesugi Kenshin and Takeda Shingen. Despite this, a peace between the two allowed Shingen to focus on the Hojo.

    Later that year, Shingen invaded Musashi Province and advanced south towards Odawara, the capital of the Hojo. Though they were able to lay siege to the mighty fortress, the chances of taking it were slim. The castle was one of the strongest in the realm, and Ujiyasu had made sure it was as well-defended as possible. Shingen likely understood that taking the castle would have been enormously costly, and he had better uses for his army, so he contented himself with burning the town around Odawara and retreating.

    Ujiyasu ordered his son, Ujimasa, to pursue the retreating Takeda, hoping to trap them before they could return to Kai Province. The plan failed, however, as the Takeda moved faster than expected and the ambush was discovered. At the ensuing Battle of Mimasu Pass, the Takeda successfully fended off the Hojo and returned to Kai.

    Some scholars believe that the whole attempt at Odawara had been an elaborate show of force, meant to impress Shingen’s new allies in the Kanto, or that it was a strategic move to keep the Hojo off balance whilst Takeda forces reinvaded Suruga. Either way, there doesn’t seem to have been much enthusiasm amongst either the Hojo or Takeda to continue the war, and some sources suggest that, shortly before his death, Ujiyasu told his son, Ujimasa, that he should return to a state of peace with the Takeda and make war on their traditional enemy, the Uesugi.

    Hojo Ujimasa

    Ujiyasu himself is supposed to have suffered a stroke in the summer of 1570. Sources from the time speak of him slurring his words or being unable to speak at all, and although he rallied briefly around the New Year in 1571, he would begin to decline again shortly afterwards. There are no official documents bearing his seal after May, and he would eventually pass away in October that year.

    Sources
    https://ja.wikipedia.org/wiki/%E5%8C%97%E6%9D%A1%E6%B0%8F%E6%94%BF
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