In 1281, Kublai Khan sent a hundred thousand men across the sea to conquer Japan. The Japanese fought them back on land, and then a typhoon destroyed the fleet. No foreign army has landed on Japanese soil since. Two and a half centuries later, a shipwrecked Portuguese sailor fired a matchlock gun on a Japanese beach, and within decades Japan had its own firearms industry, its own Christian missionaries, and two Samurai princes riding through Rome in embroidered robes — swords at their belts — to kneel before the Pope.
When Kublai Khan decided to add Japan to his empire in 1281, he had already conquered China. He had overrun Central Asia. His grandfather Genghis had built the largest contiguous land empire in history, and Kublai was extending it further. A hundred thousand men in three thousand ships crossing the sea to take one island chain — by the standards of the Mongol military record, this was not an overreach. It did not go as planned. The Japanese fought back fiercely on land and inflicted enormous casualties. Then a typhoon hit. The fleet was destroyed. The army that had landed, cut off from resupply and reinforcement, was finished. No foreign army has put soldiers on Japanese soil since. The storm that saved Japan entered the national memory as kamikaze — the divine wind — a name that would be applied, with different implications, to a different kind of sacrifice in a different kind of war six and a half centuries later. In 1281, it simply meant that the weather had done what the army alone might not have managed.
Kublai Khan's invasion fleet of three thousand ships was destroyed by a typhoon in 1281 after Japanese forces had already inflicted heavy losses on the landed army — the storm entered Japanese memory as kamikaze, the divine wind, and no foreign army has invaded Japan since.
The Hojo Regents — Power Without the Title
Before the Mongols came, Japan had been governed for two decades by the Hojo clan, who had stepped into the power vacuum left by the death of the first shogun, Yoritomo, in 1199. The Hojos were regents — not shoguns themselves, not emperors, but the people who told the shoguns what to do, operating through a puppet structure that gave them complete control while leaving the formal titles with others. This arrangement persisted for over a hundred years. They are best remembered, outside Japan, for holding off Kublai Khan. Inside Japan, their long period of rule ended in self-destruction. In 1318 they made the mistake of attacking the Emperor Go-Daigo directly and driving him from his throne. This was a different order of political miscalculation from anything they had previously committed. The emperor, whatever his actual power at any given moment in Japanese history, occupied a sacred position that the country would not accept being violated. The Hojos had managed their authority precisely by working around the imperial institution rather than against it. When they moved against it openly, the reaction was swift and fatal. Go-Daigo was restored; the Hojos were destroyed.
Two Emperors, One Country — The Ashikaga Era
Go-Daigo's restoration did not produce stability. A dispute over succession led powerful northern lords to set up a rival emperor, and for roughly sixty years Japan had two imperial courts simultaneously — the Northern Court backed by the Ashikaga clan, the Southern Court representing the older line. The Ashikaga won. Their head became the new shogun, and the office stayed in the family from 1333 to 1565. The Ashikaga shogunate produced some of the most refined cultural achievement in Japanese history. The courts they maintained attracted painters, poets, and scholars. The temples and gardens built under their patronage are still considered among the finest in Japan. Noh theatre developed during this period. The tea ceremony took on the form that has defined it ever since. By the standards of aristocratic culture, these were prosperous centuries. By the standards of everyone else, they were not. The Ashikaga were patrons and aesthetes, but they were not effective governors. The strong central control that earlier strong shoguns had maintained over the regional lords broke down. The Daimyo — the great lords who controlled the provinces — found themselves with more military capacity and less central oversight than at any previous point in Japanese history, and they used it against each other.
The Daimyo — Warlords, Castles, and the Farmers Who Fed Everyone's Army
Daimyo means great name. It was the title given to the head of a powerful hereditary family, and under the Ashikaga the daimyo effectively became the governing reality of Japan while the shogunate remained its nominal authority. A daimyo lived in a fortified castle with his Samurai retainers around him, controlled the farmland of his territory, and collected the rice that sustained his military household. A powerful daimyo might command thousands of Samurai. The whole edifice rested on the farmers who worked the land — who had no army, no castle, no meaningful capacity to resist, and who therefore suffered regardless of which side they found themselves on when the armies moved. The friend required your grain as a matter of course. The enemy plundered and burned. If a daimyo happened to be a competent administrator who kept the peace in his domain and protected the farmers under his protection, the people there were fortunate. Such daimyo existed. They were not the norm. The norm was continuous warfare between neighbouring lords, each trying to expand his territory and his tax base at the expense of everyone around him, with the farming population absorbing the damage at both ends. This was Japanese feudalism at its most uncontrolled: structurally identical to the European pattern, with lords and retainers and castles and dependent peasantry, but without the moderating institutions that eventually constrained European noble power. No Magna Carta. No common law. Just the logic of force operating without effective check for a very long time.
The Daimyo — great lords who controlled the provinces with their Samurai retainers — operated with minimal central oversight under the declining Ashikaga shogunate, producing a century of continuous warfare that devastated the farming population while the shogunal court refined its arts in Kyoto.