Sujin's work was continued by his successor, who, in 6 A.D., ordered canals and sluices to be dug in more than eight hundred places. At present Japan has great irrigating reservoirs and canals, through which the water is led for miles to the farmers' fields. In one mountain region is a deep lake of pure water, five thousand feet above the sea. Many centuries ago a tunnel was made to draw off this water, and millions of acres of soil are still enriched by its fertilizing flood. Such are some of the results of Sujin's wise reforms. Another of the labors of Sujin the civilizer was to devise a military system for the defence of his realm. In the north, the savage Ainos still fought for the land which had once been all their own, and between them and the subjects of the mikado border warfare rarely ceased. Sujin divided the empire into four military departments, with a shogun, or general, over each. At a later date military magazines were established, where weapons and rations could be had at any time in case of invasion by the wild tribes on the border or of rebellion within the realm. In time a powerful military class arose, and war became a profession in Japan. Throughout the history of the island kingdom the war spirit has been kept alive, and Japan is to-day the one nation of Eastern Asia with a love of and a genius for warlike deeds. So important grew the shoguns in time that nearly all the power of the empire fell into their hands, and when the country was opened to foreign nations, one of these, calling himself the Tai Kun (Tycoon), posed as the emperor himself, the mikado being lost to sight behind the authority of this military chief. At length old age began to weigh heavily upon Sujin, and the question of who should succeed him on the throne greatly troubled his imperial mind. He had two sons, but his love for them was so equally divided that he could not choose between their claims. In those days the heirship to the throne seems to have depended upon the father's will. Not being able to decide for himself, he appealed to fate or divination, asking his sons one evening to tell him the next morning what they had dreamed during the night. On their dreams he would base his decision. The young princes washed their bodies and changed their clothes,--seemingly a religious rite. Visions came to them during the still watches of the night, and the next morning they eagerly told their father what dreams the gods had sent. "I dreamed that I climbed a mountain," said the elder, "and on reaching its summit I faced the east, and eight times I cut with the sword and thrust with the spear." "I climbed the same mountain," said the younger, "and stretched snares of cords on every side, seeking to catch the sparrows that destroy the grain." The emperor listened intently, and thus sagely interpreted the visions of his sons.