The 15 September 1950 UN amphibious landing that cut KPA supply to the Pusan Perimeter and retook Seoul -- a tide-table gamble, not the end of the Korean War.
Educational history. Casualty figures are documented ranges. This is not operational advice, a ranking of nations, or a how-to for weapons or coups.
Operation Chromite put X Corps ashore at Inchon on 15 September 1950, far behind the Korean People's Army fighting on the Pusan Perimeter. MacArthur had forced the plan through sceptical JCS and Navy voices: the harbour's tidal range (among the world's largest), mudflats, and seawalls made it a bad textbook beach -- and therefore, he argued, lightly held.
Wolmi-do fell in the morning; the evening tide put Marines and soldiers onto the city. Kimpo airfield and the Han crossings opened the fight for Seoul, declared recaptured on 28 September. UN and ROK dead in the Inchon-Seoul operation are usually given in the hundreds; KPA losses in dead and captured were much higher. The landing wrecked KPA logistics in the south.
Chromite did not end the war. The UN drive across the 38th parallel and toward the Yalu invited Chinese intervention. For Korean readers this is a national-capital story as much as a MacArthur story: Seoul's second liberation in three months, and a reminder that operational brilliance can widen a war. Anglophone memory treats Inchon as the "clever landing" between two world-war amphibious myths (Overlord, Pacific islands).
Deep introduction
Inchon was a harbour problem, a political deadline (retake Seoul), and a strategic temptation to go north.
A landing at Kunsan or closer to Pusan would have been orthodox. Inchon promised to cut the Seoul-Pusan axis and collapse the KPA from the rear. The price was hydrography.
Admiral Doyle's staff turned tide tables into a two-pulse landing (morning Wolmi, evening city).
Naval gunfire and carrier air prepared Wolmi-do. Marines climbed seawalls. The city fight was short compared with Seoul's street week.
Almond's X Corps -- Marines and 7th Infantry, with ROK units -- was a MacArthur instrument as much as a joint team.
Syngman Rhee and MacArthur's ceremony in the damaged capital was political theatre on a clock. The KPA in the south was already breaking toward the parallel.
Atrocities and civilian harm in the recapture week belong in the ledger -- a Korean city, not an empty stage.
Success licensed the UN crossing of the 38th. China's warning was discounted. Inchon's afterlife is the Yalu as much as the seawall.
Truman would fire MacArthur in April 1951 for a different argument -- but Chromite made the general politically almost untouchable for a season.
Dated history of Battle of Inchon (15-19 September 1950 (landing and city; Seoul follows to 28 Sep)) in Inchon (Incheon) harbour and the approach to Seoul, Korea.
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02Historical forces and institutions of Battle of Inchon -- not a live order of battle.
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03How Battle of Inchon unfolded as historical sequence, not instruction.
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04Human and material cost of Battle of Inchon, as documented ranges.
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05People and debates around Battle of Inchon.
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06Afterlives and unresolved questions of Battle of Inchon.
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07Maps, portrayals and rituals of Battle of Inchon.
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