Battle of Imafuku

What Happened

On 26 December 1600, forces loyal to Tokugawa Ieyasu attacked the village of Imafuku, on the Yamato River northeast of Osaka. Ieyasu sent roughly 1,500 men under Satake Yoshinobu to seize the site and build a fort there. The village was held by about 600 defenders of the Toyotomi side, commanded by two generals named Iida and Yano Masatomo.

Satake drove the defenders out of the village and killed both Iida and Yano. The position was not secured for long. Reinforcements arrived for the Toyotomi force, led by Kimura Shigenari and Gotō Mototsugu, who charged the Eastern army and inflicted heavy casualties, forcing Satake to order a withdrawal.

The reversal was temporary. Uesugi Kagekatsu arrived with fresh troops for Satake, and the Western force was pushed back a second time. Satake ended the day holding the village.

Background

The battle belongs to the Azuchi–Momoyama period, the decades of unification wars that ran from 1573 to 1603, and it falls in the fifth year of the Keichō era (慶長, けいちょう) — the nengō, or era name, by which the year was officially counted. It was one of the opening engagements of the Winter Siege of Osaka, the first of two campaigns fought around Osaka Castle over two years.

Imafuku lay on the northeast approach to Osaka, which is why the Tokugawa side wanted it. A fort at the village would close one of the routes into the city and help tighten the ring around the castle. The fighting there was part of the wider Winter Siege of Osaka, the operation in which Tokugawa Ieyasu moved to reduce the last great Toyotomi stronghold.

The two sides are usually called the Eastern Army, the Tokugawa coalition, and the Western Army, the Toyotomi loyalists. Imafuku was an early test of whether the Western Army could hold the outer approaches to Osaka against a larger and better-supplied opponent.

Why It Mattered

The immediate result was a Tokugawa foothold on the northeast approach to Osaka. Satake Yoshinobu took the village, lost it momentarily to a determined counterattack, and then regained it with Uesugi Kagekatsu's reinforcements. The fort could then be built, and one of the roads into the city came under Eastern Army control.

The battle also showed the shape the Winter Siege would take. A small Western garrison — 600 men — held out long enough for Kimura Shigenari and Gotō Mototsugu to arrive and land a serious blow on a force more than twice its size. That pattern of stubborn defence and costly counterattack repeated across the campaign.

For the men involved, Imafuku was a first measure of the other side. Kimura Shigenari and Gotō Mototsugu emerged from it as commanders willing to charge a superior enemy; Satake Yoshinobu and Uesugi Kagekatsu learned that the outer villages would not be taken cheaply. The Winter Siege of Osaka, of which this was an early part, ended the following year without a decisive field victory, and the question of Osaka was settled only in the Summer Campaign of 1615.

The Name in Japanese

The Japanese name is 今福の戦い, read いまふくのたたかい (imafuku no tatakai). In romaji the elements are Imafuku for the place and no tatakai for "the battle of."

今 (いま, ima) — "now," "the present." It is one of the most common everyday words in Japanese, and here it begins a place name rather than carrying its literal sense.

福 (ふく, fuku) — "fortune," "good luck," "blessing." This character appears in many personal names and place names, and it is the second half of the village name Imafuku.

の (no) — the possessive and linking particle, written in hiragana rather than kanji. It joins the place name to the noun that follows, so 今福の戦い is literally "Imafuku's battle" or "the battle of Imafuku."

戦 (たたか, tataka) — "war," "fight," "battle." On its own the character is read sen in compounds such as 戦争 (せんそう, sensō, "war"), but in this word it takes the native Japanese reading tatakai.

い (i) — hiragana, completing the reading of 戦い. The trailing い turns the verb stem into a noun: tatakau ("to fight") becomes tatakai ("a fight," "a battle").

So the whole name breaks down as 今福 (the village) + の (of) + 戦い (battle). A reader who knows the characters can recognise the pattern instantly: a place name, the linking particle, and a noun formed from a verb. The same 戦い appears in the names of countless other engagements, and の between a place and a noun is the standard way Japanese names a battle after its site.

Key Figures

Satake Yoshinobu — commander of the Tokugawa force at Imafuku, sent by Tokugawa Ieyasu with about 1,500 men to take the village and fortify it. He lost the position to the Western counterattack and retook it with Uesugi Kagekatsu's reinforcements.

Kimura Shigenari — Western Army commander who arrived with reinforcements and led the charge that inflicted heavy casualties on Satake's men and forced their withdrawal.

Gotō Mototsugu — Western Army commander who charged alongside Kimura Shigenari in the same counterattack.

Uesugi Kagekatsu — arrived with reinforcements for Satake, turning the battle back in the Eastern Army's favour and allowing the village to be held for good.

Iida — one of two generals commanding the 600-strong Western garrison of Imafuku; killed when Satake overran the village.

Yano Masatomo — the second of the two garrison commanders; killed in the same attack.

Tokugawa Ieyasu — head of the Eastern Army, who ordered the move on Imafuku to secure the northeast approach to Osaka.