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| Korean War Incheon landings | |
|---|---|
| Name | Incheon landings |
| Partof | Korean War |
| Caption | Troops landing at Incheon in September 1950 |
| Date | 15–19 September 1950 |
| Place | Incheon, South Korea |
| Result | United Nations victory; recapture of Seoul |
| Combatant1 | United Nations Command |
| Combatant2 | Korean People's Army |
| Commander1 | Douglas MacArthur; Arthur D. Struble; Edward M. Almond |
| Commander2 | Kim Il-sung |
| Strength1 | United States Navy, Marines, Army and allied forces |
| Strength2 | Korean People's Army |
Korean War Incheon landings The Incheon landings were a decisive amphibious assault in September 1950 during the Korean War that reversed the North Korean advance. Conducted by United Nations Command forces, the operation enabled rapid maneuvers that led to the recapture of Seoul and altered the strategic balance on the Korean Peninsula. The assault combined naval, air, and ground elements under a unified command and has been studied as a landmark example of operational surprise and amphibious warfare.
In June 1950 the Korean People's Army launched an invasion across the 38th parallel, igniting the Korean War. By August 1950 Pusan Perimeter defensive operations held a shrinking pocket around Pusan where United States Eighth Army and allied units maintained resistance. International responses included United Nations Security Council resolutions and the deployment of forces from United States of America, United Kingdom, Turkey, Australia, Canada, and other members. Strategic options to relieve Pusan Perimeter included direct frontal offensives and an amphibious envelopment; Douglas MacArthur advocated for a bold landing to sever North Korean People's Army supply lines and threaten Pyongyang.
Operational planning centered on General Douglas MacArthur as Commander in Chief, Far East Command, with naval execution under Admiral Arthur D. Struble and ground forces coordinated by Lieutenant General Edward M. Almond and naval amphibious commanders. Intelligence inputs came from Central Intelligence Agency assessments, Office of Naval Intelligence, and intercepted Soviet Union-linked signals regarding Korean People's Army dispositions. Planners weighed tidal charts from Incheon Bay and hydrographic surveys, the presence of sea walls and tidal flats, and urban terrain in Incheon and Seoul. Commanders integrated lessons from World War II amphibious campaigns such as Operation Overlord and Battle of Iwo Jima while devising deception measures to mask timing and locus of the assault.
The assault force drew on elements of the United States X Corps, United States Navy, United States Marine Corps, British Royal Navy, and allied naval and air support. Key units included 1st Marine Division, 7th Infantry Division, and carrier-based aircraft from USS Philippine Sea (CV-47) and other carriers. Logistics required prepositioning of landing craft, LSTs, and minesweeping flotillas drawn from Mine Squadron elements, plus coordination with Far East Air Forces for close air support. Engineers prepared ramps, causeways, and unloading plans to handle tidal variability, while naval gunfire support vessels and cruiser units provided bombardment capability.
Codenamed Operation Chromite, the assault commenced with diversionary and reconnaissance missions that included airborne and commando raids to secure islands and channels in Incheon Bay. Pre-assault mine clearance was executed by specialized units to open approach lanes amid fears of sea mine fields. Initial landings targeted Wolmido Island and the harbor approaches to establish fire bases and break coastal defenses. Amphibious waves landed at dawn on breached seawalls and tidal flats, overcoming obstacles to bring armor and infantry ashore. Carrier and cruiser gunfire, along with air strikes from United States Air Force and carrier aviation, suppressed enemy concentrations in support of the advancing troops.
After securing the beachhead, UN forces pushed into Incheon and then rapidly advanced overland toward Seoul. Urban combat involved house-to-house clearing, coordinated armoured thrusts, and close-quarters engagements with elements of the Korean People's Army defending key road hubs. The capture of Incheon cut major supply routes used by North Korean forces operating south of the Han River, undermining their ability to sustain positions around the Pusan Perimeter. Commanders exploited interior lines to shift forces east and west, facilitating link-up with units attacking from Pusan and creating pockets that led to mass surrenders and disorganized withdrawals by enemy formations.
The success of the landings facilitated the rapid recapture of Seoul within days and precipitated a general collapse of North Korean advances in the south. Operationally, the maneuver enabled UN forces to transition from defensive to offensive operations, leading to subsequent advances beyond the 38th Parallel toward Pyongyang. The operation influenced Cold War perceptions of United States military resolve and affected diplomatic negotiations in United Nations. It also prompted reassessments in People's Republic of China and Soviet Union policy toward intervention, contributing to later strategic decisions including Chinese cross-border intervention. Military historians compare the landing to classic amphibious operations and debate its implications for civil-military command relations involving Douglas MacArthur and US national leadership.
Casualty figures vary by source but UN forces incurred several hundred killed and wounded during the assault phase, with additional losses from naval and air operations. North Korean units suffered significantly higher casualties and large numbers of captured personnel, along with the loss of materiel including small arms, artillery pieces, and logistical stockpiles. Naval assets expended ordnance in shore bombardment, and several support vessels sustained damage from coastal defenses and mines. The campaign's attrition of Korean People's Army combat power materially altered subsequent engagements on the peninsula.
Category:Battles of the Korean War Category:Amphibious operations