The world expected Japan to lose.

China in 1894 had 400 million people, a nominally modern army, ironclad warships purchased from Europe, and the weight of a civilization that had been Japan's cultural teacher for a thousand years. It also had the Beiyang Army 北洋軍 (Beiyang-gun) — trained by German officers, equipped with modern rifles and artillery, considered one of the larger military forces in Asia. Japan had 40 million people and a conscript army that had not existed at all twenty-five years earlier. Western military attachés watched and calculated. They calculated wrong.

On August 1, 1894, Emperor Meiji issued the Imperial Rescript declaring war on the Qing dynasty. The wording was careful and pointed: Japan invoked "the Law of Nations," framed the conflict in terms of Korean sovereignty and international order, and addressed itself partly to Western observers. Japan was performing modernity — demonstrating it belonged in the club of great powers that carved up weaker nations rather than being carved up themselves. The declaration was as much diplomatic as military.

What the Western audience did not fully understand was who was doing the fighting.

Yamagata Aritomo — 56 years old, born a low-ranking samurai of Chōshū domain, architect of the modern Imperial Japanese Army — had designed the conscript military around a core of samurai values. His army would march with peasant soldiers, yes. But it would march with the discipline, the contempt for death, and the unit cohesion that the old warrior class had spent generations building. Oyama Iwao, 51, Satsuma-born samurai and commander of the Second Army, had fought in the Boshin War and the Satsuma Rebellion before leading divisions against the Qing. These men had grown up with swords before they learned to give orders in Meiji staff rooms.

The war was brief and stunning. The Battle of Pyongyang (平壌の戦い) (Heijō no Tatakai) on September 15 fell in a single day to coordinated multi-column assault — an operation demanding modern staff planning executed by officers whose fathers had been samurai. Port Arthur (旅順) (Ryojun) fell on November 21, also in a single day, followed by a massacre of Chinese civilians that horrified Western journalists and complicated Japan's carefully managed international image. The Battle of the Yalu River destroyed the Beiyang Fleet. By February 1895, the Qing had lost on every front and sued for peace.

The Treaty of Shimonoseki (下関条約) (Shimonoseki Jōyaku) transferred Taiwan and the Liaodong Peninsula to Japan, recognized Korean independence from Chinese suzerainty, and imposed an indemnity of 200 million taels of silver — the largest ever paid in East Asian history to that point. The money funded Japan's next generation of military modernization, including the navy that would defeat Russia in 1905.

One week after signing, Russia, Germany, and France jointly demanded Japan return the Liaodong Peninsula. Japan complied, outgunned diplomatically. The humiliation seared. Russia would pay for it nine years later at Tsushima.

The samurai class had been legally abolished since 1876. Its practitioners had been scattered, its stipends cut, its rebellion crushed at Shiroyama in 1877. But the psychology it had built — the 武士道 (bushidō) that Nitobe Inazō (にとべ いなぞう) (Nitobe Inazō) would codify for Western readers in 1900, specifically because the war had made Japan legible to the West — that had not been abolished. It had been conscripted.