Boshin War - Opening Conflicts

Opening Conflicts

On 27 January 1868, Shogunate forces attacked the forces of Chōshū and Satsuma, clashing near Toba and Fushimi, at the southern entrance of Kyoto. Some parts of the 15,000-strong Shogunate forces had been trained by French military advisers, but the majority remained medieval samurai forces. Meanwhile, the forces of Chōshū and Satsuma were outnumbered 3:1 but fully modernized with Armstrong howitzers, Minié rifles and a few Gatling guns. After an inconclusive start, on the second day, an Imperial pennant was remitted to the defending troops, and a relative of the Emperor, Ninnajinomiya Yoshiaki, was named nominal commander in chief, making the forces officially an imperial army (官軍, kangun?). Moreover, convinced by courtiers, several local daimyo, up to this point faithful to the Shogun, started to defect to the side of the imperial court. These included daimyo of Yodo on February 5, and the daimyo of Tsu on February 6, tilting the military balance in favour of the Imperial side.

On February 7, Tokugawa Yoshinobu, apparently distressed by the imperial approval given to the actions of Satsuma and Chōshū, fled Osaka aboard the Kaiyō Maru, withdrawing to Edo. Demoralized by his flight and by the betrayal by Yodo and Tsu, Shogunate forces retreated, making the Toba-Fushimi encounter an Imperial victory, although it is often considered the Shogunate forces should have won the encounter. Osaka Castle was soon invested on February 8 (on March 1, Western calendar), putting an end to the battle of Toba-Fushimi.

At the same time, on 28 January 1868, the naval Battle of Awa between the Shogunate and elements of the Satsuma Navy took place. This was Japan's second engagement between two modern navies. The battle, although small in scale, ended in favour of the Shogunate.

On the diplomatic front, the ministers of foreign nations, gathered in the open harbor of Hyōgo (present day Kobe) in early February, issued a declaration according to which the Shogunate was still considered the only rightful government in Japan, giving hope to Tokugawa Yoshinobu that foreign nations (especially France) might consider an intervention in his favour. A few days later however an Imperial delegation visited the ministers declaring that the Shogunate was abolished, that harbours would be open in accordance with International treaties, and that foreigners would be protected. The ministers finally decided to recognize the new government.

The rise of anti-foreign sentiment nonetheless led to several attacks on foreigners in the following months. Eleven French sailors from the corvette Dupleix were killed by samurai of Tosa in the Sakai incident on March 8, 1868. Fifteen days later, Sir Harry Parkes, the British ambassador, was attacked by a group of samurai in a street of Kyoto.