Chinese waters and was regarded by the maritime nations as an ocean highway. The prince had fortified the narrow passage which intersected his territory and guarded it with armed vessels. An American merchant vessel passing through the strait was fired upon, and, later, ships of other nationalities were similarly treated. When the news reached Yokohama, the United States naval steamer Wyoming was in the harbor, and, upon consultation with Mr. Pruyn and at his request, she proceeded to Shimonoseki, and on entering the strait was fired upon by the vessels and batteries. She returned the fire, sinking one of the vessels and badly damaging the other two. She passed through the strait and returned, engaging the batteries, with the loss of four men killed and seven wounded.
About the same time French and Dutch naval vessels had a similar experience. As a result of these attacks, a meeting of the representatives of the treaty powers was held at Yokohama, at which it was decided to organize and dispatch an expedition to open the strait, if it was not done by Japan within twenty days. The Shogun being powerless in the matter, the expedition sailed. It consisted of nine British ships of war, four Dutch, three French, and one United States chartered steamer, the Jamestown, U. S. N., being detailed to protect Yokohama. The latter was the only man-of-war in Japanese waters, the civil war in the United States requiring all other of its naval vessels elsewhere. The attack upon the daimio's forts and vessels began September 5, 1863, and continued until the 8th, when he, defeated at every point, made an unconditional submis-
