First battle, July 20, 1863 and
Sémiramis, under Rear Admiral Charles Jaurès.
Le Monde illustré, October 10th, 1863. On the heels of McDougal's engagement, on July 20, the
French Navy retaliated for the attack on their merchant ship. The French force consisted of
marines and two warships, the
aviso Tancrède and the Admiral's flagship,
Sémiramis. With 250 men, under Captain
Benjamin Jaurès, they swept into Shimonoseki and destroyed a small town, together with at least one artillery emplacement. The intervention was supported by the French
plenipotentiary in Japan,
Gustave Duchesne de Bellecourt, but the French government, once informed, strongly criticized their representatives in Japan for taking such bellicose steps, for the reason that France had much more important military commitments to honour in other parts of the world, and could not afford a conflict in Japan. Duchesne de Bellecourt would be relieved from his position in 1864. Jaurès was also congratulated by the shogunate for taking such decisive steps against anti-foreign forces, and was awarded a special banner.
Diplomatic negotiations Meanwhile, the Americans, French, British and Dutch feverishly opened diplomatic channels to negotiate the reopening of the passage to the Inland Sea. Months dragged by with no end in sight to the growing dilemma. By May 1864, various bellicose Japanese factions had destroyed thousands of dollars in foreign property, including homes, churches and shipping. This wanton destruction included the U.S. Legation in
Edo, which housed
Minister Robert Pruyn. Throughout the first half of 1864, as Shimonoseki Strait remained closed to foreign shipping, threats and rumors of war hung in the air, while diplomatic efforts remained deadlocked. Then the British Minister to Japan,
Sir Rutherford Alcock, discussed with his treaty counterparts such as
American Minister Robert Pruyn and Dutch Minister
Dirk de Graeff van Polsbroek, the feasibility of a joint military strike against Mōri. They were soon making preparations for a combined show of force. Under the wary eyes of the Japanese, fifteen British warships rode anchor alongside four Dutch vessels, while a British regiment from
Hong Kong augmented their display of military might. The French maintained a minimal naval presence, with the bulk of their forces in
Mexico trying to bolster Emperor
Maximilian's unstable regime. The U.S., engaged in its
Civil War, limited itself to demonstrate diplomatic and minimal military support for the allies. In the meantime, Mōri procrastinated in negotiations by requesting additional time to respond to the Allied demands, a response unacceptable to the treaty powers. The allies decided that the time for united action had arrived. Despite retaliatory action from the treaty powers, another attack occurred in July 1864 when the rebel forces fired upon the U.S. steamer
Monitor after she entered a harbor for coal and water. This provoked further outrage, even after a British squadron delivered a multi-national ultimatum to Mōri, threatening military force if the strait was not opened.
Final battle, September 5–6, 1864 (background) and the Admiral's flagship,
Sémiramis. (foreground),
Jean-Baptiste Henri Durand-Brager, 1865. '', December 1864. On August 17, 1864, a squadron consisting of nine British (,
Conqueror,
Tartar,
Leopard,
Barrosa,
Perseus,
Argus,
Coquette, and
Bouncer), four Dutch (
Djambi,
Metalen-Kruis,
Medusa, and
Amsterdam), and three French warships (
Tancrède,
Sémiramis, and
Dupleix), together with 2,000
soldiers, marines and sailors, all under the command of
Admiral Sir
Augustus Kuper of the
Royal Navy, steamed out of Yokohama to open Shimonoseki Strait. The U.S. chartered steamer accompanied the operation in a token show of support. The two-day battle that followed on September 5 and 6 did what the previous operations could not; it destroyed the
Chōshū Domain's ability to wage war on the Western powers. Unable to match the firepower of the international fleet, and amid mounting casualties,
Takasugi Shinsaku negotiated peace with the four Western powers and Chōshū forces finally surrendered two days later on September 8, 1864. Allied casualties included 72 killed or wounded; although Ernest Satow describes only 8 killed and 30 wounded for the British and two damaged British ships. A full account of the battle is contained in
Ernest Satow's
A Diplomat in Japan. Satow was present as a young interpreter for the British admiral, Augustus Kuper on the British flagship
HMS Euryalus, commanded by Captain J. H. I. Alexander. It was also the action at which
Duncan Gordon Boyes won his
Victoria Cross (VC) at the age of seventeen. Satow described Boyes as receiving the award "for conduct very plucky in one so young." Another VC winner at Shimonoseki was
Thomas Pride, and the third was the first American to win the medal,
William Seeley. De Casembroot wrote his account of the events in
De Medusa in de wateren van Japan, in 1863 en 1864. The stringent accord, drawn up in the wake of the ceasefire and negotiated by U.S. Minister Pruyn, included an indemnity of $3,000,000 from the Japanese, an amount equivalent to the cost of about 30 steamships at that time. The Tokugawa shogunate proved unable to pay such an amount, and this failure became the basis of further foreign pressure to open Japanese ports; Japan was forced to choose between paying compensation of three million piastres and opening another port on the Inland Sea. The harbour of
Hyōgo was opened to foreign trade, and customs tariffs were lowered uniformly to 5%. In 1883, twenty years after the first battle to reopen the strait, the United States returned $785,000.87 to Japan, which represented its share of the reparation payment. ==Aftermath==