Incheon Port (Jinsen)

Incheon Port (Korean: 인천항, Japanese: 仁川港/Jinsen-kō), located in Jung-gu, Incheon Metropolitan City, South Korea, was one of the most strategically important ports in colonial Korea and served as the primary maritime gateway to Seoul throughout the Japanese imperial period.

The port's modern history began when it was opened as one of Korea's three treaty ports on January 1, 1883, under the name Jemulpo (済物浦). Foreign concessions were quickly established, with the Japanese settlement becoming the largest and most influential. The strategic importance of Incheon was demonstrated during the First Sino-Japanese War (1894–1895), when Japanese forces landed at the port on June 9, 1894, to secure control of the Korean Peninsula. A decade later, during the Russo-Japanese War (1904–1905), Japan again used Incheon as a landing point, with the Battle of Chemulpo Bay on February 9, 1904 — after which the outgunned Russian cruiser Varyag and gunboat Korietz were scuttled by their own crews — marking one of the war's opening engagements. Wolmi Island was turned into a Japanese military zone during the war, and in 1906 a rail link from Incheon Station first connected the island to the mainland.

Following Japan's formal annexation of Korea in 1910, the port was renamed Jinsen (仁川) and underwent massive modernization. A five-year plan (1906–1912) expanded and secured the harbor, while extensive land reclamation projects reshaped the coastline. Tidal basins were constructed to overcome the extreme 10-meter tidal range of the Yellow Sea. The port's economic development progressed through distinct phases: rice processing and brewing (1883–1910), textile and milling industries (1911–1930), and heavy industry and munitions manufacturing (1931–1945). By the wartime period, Incheon had become a significant industrial center supporting Japan's military campaigns.

The Japanese colonial presence left an enduring architectural legacy in Jung-gu's Open Port Area (Gaehangjang, 개항장). Notable surviving structures include the former Japanese First Bank Incheon Branch (built 1899, now the Incheon Open Port Museum), the former Eighteenth Bank Incheon Branch (built 1890, now the Modern Architecture Exhibition Hall), the former Fifty-Eighth Bank Incheon Branch (built 1892), and the former Nippon Yusen (Japan Mail Steamship) Incheon Branch Office. These buildings reflect the financial infrastructure that underpinned colonial economic exploitation.

The port remained a site of major military significance after Japan's defeat: in September 1950, during the Korean War, General Douglas MacArthur's daring amphibious assault — the Battle of Inchon — turned the tide of the conflict. Today, Incheon Port operates as South Korea's second-largest seaport, and the Open Port Area has been developed as a cultural heritage zone with multiple museums documenting the colonial era.