Nobunaga was then on the threshold of his brilliant career. In those days of perpetual war and tumult, the supreme ambition of each great territorial baron in Japan was to fight his way to the capital, there to obtain from the sovereign and the Muromachi Bakufu a commission to subdue the whole country and to administer it as their lieutenant. Nobunaga seems to have cherished that hope from his early years, though several much more powerful military magnates would surely oppose anything like his pre-eminence. Moreover, in addition to comparative weakness, he was hampered by local inconvenience. The province of Owari was guarded on the south by sea, but on the east it was menaced directly by the Imagawa family and indirectly by the celebrated Takeda Shingen, while on the north it was threatened by the Saito and on the west by the Asai, the Sasaki, and the Kitabatake. Any one of these puissant feudatories would have been more than a match for the Owari chieftain, and that Imagawa Yoshimoto harboured designs against Owari was well known to Nobunaga, for in those days spying, slander, forgery, and deceit of every kind had the approval of the Chinese writers on military ethics whose books were regarded as classics by the Japanese. Hideyoshi himself figures at this very time as the instigator and director of a series of acts of extreme treachery, by which the death of one of the principal Imagawa vassals was compassed; and the same Hideyoshi was the means of discovering a plot by Imagawa emissaries to delay the repair of the castle of Kiyosu, Nobunaga's headquarters, where a heavy fall of rain had caused a landslide. Nobunaga did not venture to assume the offensive against the Imagawa chief. He chose as a matter of necessity to stand on the defensive, and when it became certain that Imagawa Yoshimoto had taken the field, a general impression prevailed that the destruction of the Oda family was unavoidable.

BATTLE OF OKEHAZAMA

In the month of June, 1560, Imagawa Yoshimoto crossed the border into Owari at the head of a force stated by the annals to have been forty-six thousand strong. Just two years had elapsed since Hideyoshi's admission to the service of the Owari baron in the office of sandal-bearer. Nevertheless, some generally credible records do not hesitate to represent Hideyoshi as taking a prominent part in the great battle against the Imagawa, and as openly advising Nobunaga with regard to the strategy best adapted to the situation. It is incredible that a private soldier, and a mere youth of twenty-two at that, should have risen in such a short time to occupy a place of equality with the great generals of Nobunaga's army. But that Hideyoshi contributed more or less to the result of the fight may be confidently asserted.

The battle itself, though the forces engaged were not large, must be counted one of the great combats of the world, for had not Nobunaga emerged victorious the whole course of Japanese history might have been changed. At the outset, no definite programme seems to have been conceived on Nobunaga's side. He had no allies, and the numerical inferiority of his troops was overwhelming. The latter defect was remedied in a very partial degree by the resourcefulness of Hideyoshi. In his boyhood he had served for some time under a celebrated chief of freebooters, by name Hachisuka Koroku,* and he persuaded that chieftain with his fifteen hundred followers to march to the aid of the Owari army, armour and weapons having been furnished by Sasaki Shotei, of Omi province. Sasaki regarded Nobunaga's plight as too hopeless to warrant direct aid, but he was willing to equip Hachisuka's men for the purpose, although the addition of fifteen hundred soldiers could make very little difference in the face of such a disparity as existed between the combatants.

*Ancestor of the present Marquis Hachisuka.

Shortly before these events, Owari had been invaded from the west by the Kitabatake baron, whose domain lay in Ise, and the invaders had been beaten back by a bold offensive movement on Nobunaga's part. The ultimate result had not been conclusive, as Nobunaga advisedly refrained from carrying the war into Ise and thus leaving his own territory unguarded. But the affair had taught the superiority of offensive tactics, and thus Nobunaga's impulse was to attack the army of Imagawa, instead of waiting to be crushed by preponderate force. His most trusted generals, Shibata Katsuiye, Sakuma Nobumori, and Hayashi Mitsukatsu, strenuously opposed this plan. They saw no prospect whatever of success in assuming the offensive against strength so superior, and they urged the advisability of yielding temporarily and awaiting an opportunity to recover independence. Here, Hideyoshi is reputed to have shown conspicuous wisdom at the council-table. He pointed out that there could be no such thing as temporary surrender. The Imagawa would certainly insist on hostages sufficiently valuable to insure permanent good faith, and he further declared that it was a mistake to credit the Imagawa with possessing the good-will of any of the other great feudatories, since they were all equally jealous of one another.

Finally, it was resolved that seven forts should be built and garrisoned, and that five of them should be allowed to fall into the enemy's hands if resistance proved hopeless. In the remaining two forts the garrisons were to be composed of the best troops in the Owari army, and over these strongholds were to be flown the flags of Nobunaga himself and of his chief general. It was hoped that by their success in five of the forts the Imagawa army would be at once physically wearied and morally encouraged to concentrate their entire strength and attention on the capture of the last two fortresses. Meanwhile, Nobunaga himself, with a select body of troops, was to march by mountain roads to the rear of the invading forces and deliver a furious attack when such a manoeuvre was least expected. The brave men who engaged in this perilous enterprise were strengthened by worshipping at the shrine of Hachiman in the village of Atsuta, and their prayers evoked appearances which were interpreted as manifestations of divine assistance. Most fortunately for the Owari troops, their movements were shrouded by a heavy rainfall, and they succeeded in inflicting serious loss on the invading army, driving it pele-mele across the border and killing its chief, Yoshimoto. No attempt was made to pursue the fugitives into Mikawa. Nobunaga was prudently content with his signal victory. It raised him at once to a level with the greatest provincial barons in the empire, and placed him in the foremost rank of the aspirants for an Imperial commission.

ENGRAVING: TOKUGAWA IEYASU
TOKUGAWA IEYASU

The battle of Okehazama led to another incident of prime importance in Japanese history. It brought about an alliance between Oda Nobunaga and Tokugawa Ieyasu. Among the small barons subject to the Imagawa there was one called Matsudaira Motoyasu. He had taken the name, Motoyasu, by adopting one of the ideographs of Yoshimoto's appellation. His family, long in alliance with the Imagawa, were at a variance with the Oda, and in the battle of Okehazama this Motoyasu had captured one of the Owari forts. But on the defeat and death of Yoshimoto, the Matsudaira chieftain retired at once to his own castle of Okazaki, in the province of Mikawa. He had then to consider his position, for by the death of Yoshimoto, the headship of the Imagawa family had fallen to his eldest son, Ujizane, a man altogether inferior in intellect to his gifted father. Nobunaga himself appreciated the character of the new ruler, and saw that the wisest plan would be to cement a union with Matsudaira Motoyasu. Accordingly he despatched an envoy to Okazaki Castle to consult the wishes of Motoyasu. The latter agreed to the Owari chief's proposals, and in February, 1562, proceeded to the castle of Kiyosu, where he contracted with Oda Nobunaga an alliance which endured throughout the latter's lifetime. In the following year, Motoyasu changed his name to Ieyasu, and subsequently he took the uji of Tokugawa. The alliance was strengthened by intermarriage, Nobuyasu, the eldest son of Ieyasu, being betrothed to a daughter of Nobunaga.