Katsu Kaishū and the Foundations of the Modern Japanese Navy

In this episode we discuss Admiral Katsu Kaishū’s transformation of the modern Japanese navy into a force that defeated the Russians in 1905.

For 200 years, Japan was largely isolated from the world. By the 19th century, as countries in Europe and North America were expanding into its neighbourhood, Japan’s military capability had atrophied. In response, the Tokugawa Shogunate created a navy in 1853 and Katsu became a naval officer. Trained by the Dutch, he became an expert in Western gunnery and commanded the Kanrin Maru on the first deployment of a Japanese warship to a Western port. There he could observe how a Western navy worked – ideas he brought back to Japan as the basis for the modern Japanese Navy.

By 1867, under the Meiji government, he was responsible for overseeing the Navy’s transition from sail to steam technology. He introduced profound changes to the Navy’s organisation, strategy and tactics, including shore-based defences, harbours, shipyards and human resource systems that allowed access to the talent needed by a more technological service. Ultimately, the foundations he laid helped the Japanese defeat the Russian Navy at the battle of Tsushima in 1905.

Commander Dr Hiroyuki Kanazawa, our first guest for this episode, serves in the Japanese Maritime Self-Defense Force, and his PhD examines the Japanese Navy in the Late Tokugawa Period (1853–1868). Dr Haruo Tohmatsu, our other participant, is Professor of Diplomatic and War History at the National Defense Academy. His PhD in Politics and International Relations is from the University of Oxford. He has published numerous works in English, including Pearl Harbor (London: Cassell, 2001) and World War Zero: The Russo-Japanese War in Global Perspective, vol. 2 (Leiden: Brill, 2006).