Everyone expected him to be executed. He had done, by any measure, everything required to earn it.

榎本武揚 (Enomoto Takeaki) had been the vice-commander of the Tokugawa navy. When the Boshin War turned against the shogunate in 1868 and Edo fell to imperial forces, Enomoto did not surrender with the rest. He took eight warships — the most powerful naval force in Japan — and sailed north. He landed in Hokkaido, allied with the last Tokugawa land forces, and in December 1868 established what he called the 蝦夷共和国 (Ezo Kyōwakoku) — the Republic of Ezo. Its officers held the first Western-style democratic election in Japanese history, choosing department heads by ballot. Enomoto was elected president.

The republic lasted six months.

In the spring of 1869, the Meiji government dispatched a fleet and approximately seven thousand troops to Hokkaido. Imperial forces won the 函館戦争 (Hakodate Sensō), the Battle of Hakodate, in a series of engagements that surrounded Enomoto's remaining garrison inside the walls of 五稜郭 (Goryōkaku) — a five-pointed star fortress completed in 1866, designed using French military engineering, the most modern military installation in Japan. By late June, the garrison was starving and outgunned. There was nothing left to do.

Enomoto surrendered to imperial staff officer 黒田清隆 (Kuroda Kiyotaka). Most English-language sources place the formal handover on June 26–27, 1869 (Gregorian calendar); the July 4 date associated with this entry likely reflects a Japanese lunisolar calendar conversion or a secondary source variant — Japan would not adopt the Gregorian calendar until January 1873. The exact date aside, the substance of what happened is confirmed: Enomoto handed over the fortress. Everyone expected him to die for it.

Before the surrender ceremony, according to one celebrated account, Enomoto sent Kuroda a gift: a Dutch reference book on international maritime law that he had carried with him through the entire war, kept safe across two years of fighting and flight. The gesture said something: even in defeat, even facing execution, he still believed in civilization, in law, in the kinds of institutions Japan would need to build.

Kuroda was moved. He was also practical. The new Meiji government was desperately short of men with Western technical knowledge — the kind of expertise that would be needed to build a modern navy, negotiate with foreign powers, and administer a rapidly industrializing nation. Enomoto had five years of study in the Netherlands behind him. He was fluent in Dutch and English. He understood naval engineering and international law at a level almost no one else in Japan could match. Kuroda shaved his own head — a gesture of extreme sincerity in the Buddhist tradition, a personal vow of responsibility — and argued to the government that killing Enomoto would be a waste Japan could not afford.

The Meiji government imprisoned Enomoto for three years. In 1872, they pardoned him — 赦免 (shamen). Within two years he was serving as ambassador to Russia. He negotiated the Treaty of Saint Petersburg, which resolved the long dispute over the Sakhalin and Kuril Islands. He served as vice-admiral in the Imperial Japanese Navy, then as Navy Minister, Foreign Minister, Minister of Agriculture and Commerce, Minister of Education, and Postmaster General. He founded what became Tokyo University of Agriculture. He was elevated to the peerage.

The man who raised the last flag against the Meiji revolution died in 1908, one of the most decorated statesmen the revolution had produced.

Enomoto's story became a template. The Meiji government's willingness to absorb talented enemies — to pardon rebels and put them to work — was as important to nation-building as its military victories. A revolution that destroyed all of its opponents would have been too brittle to survive. The shamen of Enomoto Takeaki was a policy decision as much as a mercy.