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The Korean War

Background

1910 - 1945

  • Korea had most prominent communist groups and activists

  • worked underground to re-establish Korean independence when Japan occupied Korean Peninsula in 1910-1945

Post-WW2 Occupation

  • Korea occupied by USSR in north and USA in south in 1945

  • chosen 38th parallel also used to separate Japan and Russia in early 20th century

Causes

Kim Il-Sung

  • heroic guerrilla commander as 33-year-old Soviet Army captain

  • Soviets made him head of provisional government for North Korea in early 1946

  • made premier of Democratic People’s Republic of Korea on September 9th, 1948

Progression & Economy

  • Kim bought into Korean nationalism and independence with the Korean People’s Army

    • 2 million acres of land redistributed in under amonth

    • women guaranteed equality under the law

    • political action cells educate population

  • North Korea advanced under Kim’s rule

  • USA and USSR left peninsula in June 1949

Syngman Rhee

  • educated and became Christian in US in early 1900s

  • campaigned for Korean independence and was in provisional government

    • attended Treaty of Portsmouth and Washington Naval Conference

      • Roosevelt did Treaty of Portsmouth

    • Tried to go to Versailles negotiations in 1919

    • opposed trusteeship negotiations between USA and USSR

  • elected president of Republic of Korea July 20, 1948

  • used torture, extralegal police measures, and assassination to repress left

Kim Il-Sung & Syngman Rhee

  • wanted to rule an independent Korea

  • opposed to Korea becoming a trusteeship

  • chose sides in the Cold War

  • needed outside help to defeat the other

The Cold War

  • Truman Doctrine - USA would lend aid to anti-communist countries

  • Domino Effect - Truman thought that if Korea fell to communism, then major trading partner Japan will follow

  • Stalin wanted to indirectly beat the US so he support the spread of communism as long as it did not result in a war with America

  • Stalin especially wanted to prove USSR’s worth after humiliation of Berlin Blockade

US Ambivalence

  • Sept. 1947

    • JCS assessed that US had little interest in maintaining military in Korea

  • Apr. 1948

    • NSC recommended withdrawing forces but providing $150 million in non-military aid

  • Jan. 1950 - Pacific Perimeter Speech

    • Secretary Acheson described Pacific Sphere without including Korea

    • House of Representatives narrowly reject Korean Aid Bill

United Nations

  • General Assembly recognizes Korea’s independence in Nov. 1947

  • UNTCOK to supervise elections

  • Soviets wouldn’t allow UNTCOK in North Korea

  • North Korea makes Democratic People’s Republic of Korea earlier in September

  • escalated border skirmishes and guerrilla activity in the south

  • June 27, 1950: UNSCR 83 declare North Korean actions were a breach of peace

  • July 7, 1950: UNSCR 8 authorized US to run a unified command of military forces from UN member states

  • UNC formed under MacArthur command

  • Rhee places all ROK forces under UNC command

Cheju 4.3 Incident

  • Apr. 1948 in Cheju-do Island

  • leftist South Korean Labor Party demonstrations for unification

  • Jeju march turn to chaos when police opened fire on a crowd and killed 6

  • escalated to coast and lasted the duration of the war

  • 30,000 died

Sung Courts Allies

Stalin

  • recent documents reveal that he wanted to convince Stalin to back an invasion after the faltering covert insurgency

  • Politburo considers military action by September 1949

    • Chinese Civil War

    • Soviet atom bomb

    • Establishment of NATO

    • Perceived US commitment to Korea

    • Soviet security in the East

    • Rhee

    • China

  • Stalin’s 3 demands

    • Decisive victory

    • Conflict will not escalate

    • no direct Soviet intervention

Mao

  • Mao is amenable

    • only military action would unify Korea

    • US won’t concern itself with Korea

    • Mao would “lean to one side”

South to Busan

  • North Korea invades June 25, 1950

  • Stalin gave the NKPA lots of tanks, artillery, and small arms

  • organized as conventional CCP army with many Chinese Civil War veterans

  • ROK army under-trained and under-equipped

  • Major-General Chae-Pyongdok rejects plan to withdraw south

  • Kaesong falls in 4 hours with typical NKPA tactics

    • T-34 disease - soldiers run away from the sound of the tank

  • Chunchon holds for 3 days but rest of the front collapses

  • fleeing refugees

  • Han bridge hastily blown up

  • ROK routed and Seoul falls June 28, 1950

  • Delays reduce ROK to Busan Perimeter and area around the southeast coast

US 8th Army

  • T-34 armored brigades overran Task Force Smith

  • Bazookas and M-26 Pershings (famous general in WW1) return assault

Incheon Landing

  • Sept 15, 1950

  • Kim neglected sea power so Britain and USA could control it with impunity

  • difficult landing involving an amphibious assault and urban warfare

  • successful - cut North Korean logistical lines and divided their forces

  • captured Wolmi-do airstrip

  • Gen. Walker breaks out of Busan Perimeter

  • Battle of Naktong Bridge at Busan Perimeter saw annihilation of NKPA

To the Yalu

  • October 7, 1950

  • UN allowed MacArthur to cross 38th parallel to unite all of Korea

  • MacArthur ignored Chinese warnings

  • Chinese and Soviets feared America on their borders

  • Mao saw Americans as arrogance

  • 8th Army and UNC push on diverging lines of advance

  • Pyongyang captured October 20, 1950

First Phase Offensive

  • UNC and 8th Army push through North Korea with NKPA rout

  • 180,000 CPV soldiers over the border

  • MacArthur overextends his forces and falls into Gen. Peng Dehuai’s trap

  • poorly equipped CPV (even with Soviet help) has many advantages:

    • veterans

    • night fighters

    • good at deception

    • high morale

Battle of the Chosin Reservoir

  • during Second Phase Offensive

    • started Nov. 25, 1950

  • IX CVP Corp attempt to encircle X US Corp

  • Chinese fighters in mountains fired at road-bound Marines on all sides

  • F4U fighter-bombers supported the defense

  • Marines retreat back to 38th parallel

  • Biggest battle of the Korean War

  • first phase of the war ends

“Old soldiers never die. They just fade away.”

  • MacArthur wanted total victory

    • unite Korea

    • remove PRC threat to Asia

      • worked before, but not during, the era of nuclear warfare

    • Nuke them

  • JCS wanted to avoid escalation

  • MacArthur outline plan to the press

    • he did this to try to become president

    • got fired on Apr. 14, 1951

    • General Ridgway takes his command

Old Iron Tits

  • Ridgway understands that the war can’t escalate

    • warfare changed since WW2

    • against nuclear weapons

    • advocates attrition

      • “the meatgrinder”

        • try to kill more of them over minimizing your casualties

  • called “Old Iron Tits” because he carried grenades around his neck

  • Institutes front reforms

    • officers lead from the front

    • Strong logistical support

    • deploy units into hills and off the roads to avoid Marines getting killed

    • attrition is operational doctrine

    • “Find them! Fix them! Fight them! Finish them!”

      • “Fix them” means to surround them to keep them there and prevent them from escaping or leaving

  • Third Phase Offensive forces Ridgway out of Seoul

    • CPV supply lines stretched to breaking and Peng had to withdraw

MiG Alley

  • MiG 15s established control between Chongchon and Yalu Rivers in the northwest corner of Korea

  • Operation Strangle

    • US FEAF mission was interdiction of North Korean lines

  • but they are losing a lot of people in MiG Alley

  • Jul-Nov 1951 - NKPA swept from air and North Korean industrial centers strategically bombed

  • Cold War understanding develops with CPV in Korea

    • Communists wouldn’t bomb Japan, South Korea, UNC Naval forces

    • No UNC aircraft within 3 miles of China

    • NO UNC aircraft within 20 miles of USSR

  • Planes used:

    • North American F-51 Mustang

    • Lockheed F-80 Shooting Star

    • Republic F-84 Thunderjet

    • Boeing B-29 Stratofortess

    • Gloster Meteor

    • Martin B-26 Invader

    • F-86 Sabre

      • only USAAF swept-wing jet

      • countered MiG 15

      • Tough and fast

      • easy to fly

      • outmaneuvered the MiG 15 at high speed

      • 6.50 caliber machine guns

    • MiG 15 ‘Fagot’

      • Dominated Korea until the Sabre

      • Climbed faster than the Sabre

      • flew higher than F-86

      • Cannons had better stopping power than F-86

      • Less experienced pilots

      • more MiGs

  • air offensive by Communist forces at the end of 1951 forced draw in air war

    • MiG Alley would belong to MiG-15

    • Superfortress daylight bombing into North Korea and FEAF Fighter-bomber operations here permanently abandoned

Naval Air War

  • Vought F4U Corsair

  • Grumman F9F Panther

  • Douglas A-1 Skyraider

  • Sikorsky HO3S-I

  • Helicopters in warfare now

The War of Attrition

  • fighting continued along 38th parallel for the rest of the war

    • made to force Communists to bargain

    • trench warfare like WW1

    • Prefigured later wars of attrition

  • Item Four of the cease-fire negotiations proved intractable

    • Communists feared mass defections would erode utopia of their ideology

    • May 7, 1952 - Koje-do pro-communist POWs rioted and captured the prison commandant

    • China and North Korea used the riot to prove UNC demand as unfounded

  • more American apathy

    • “Why die for a tie?”

    • understated “police action”

    • Republican Congress said concept of limited war was appeasement

      • Omar Bradley attacked this in testimony during MacArthur Hearings

        • said that fighting Red China would be the wrong fight at the wrong place and time with the wrong enemy

        • we don’t understand limited wars but that’s how most wars are fought

  • war starts to die down

Operation Showdown

  • Acting CPV commander Deng Hua decided on ‘Active positional defense’ doctrine resembling Ridgway’s methods

  • See-saw battles to decrease casualties

  • Battle of Kumsong Bulge

    • Van Fleet’s defense suffered 9,000 casualties

    • Chinese suffered 11,500

    • even losses

End of the War

The War Ends July 27, 1953

  • reasons

    • Chinese and North Koreans could no longer sustain the war

    • Eisenhower was elected

    • Stalin dies

  • Little Switch

    • Progress made on proposal by chief negotiator Clark to exchange sick adn wounded soldiers

    • during negotiation, China gave in on repatriation and compromised with Neutral Nations Repatriation Commission

  • Both sides continued fighting in this process

    • NSC 147 codified escalation if China did not give in

  • Rhee refuses to sign until US promises military and financial support

  • China and the USSR

    • China paid for most of the war

    • did bring them closer together

      • but China galled at Stalin insisting that China pay for the aid

  • Klausewitz observed that the war is fought until it comes to an end

The Korean War Armistice

  • made to insure end to warfare and all armed force acts in Korea until definitive peace occurred

  • covered issues like

    • POWs exchange

    • demarcation line located

  • Provided

    • suspended open hostilities

    • fixed demarcation line with 4 km buffer zone of demilitarization

    • mechanism for POWs transfer

The Death of Total War

  • Atomic weapons multiply warfare’s destructiveness and opponent may resort to them when facing major defeat

  • conventional warfare itself is expensive and exhausting

  • Cold War’s zero-sum game meant any conflict could involve the superpowers

  • maybe the biggest disaster is that intellectuals and foreign-policy experts like Derek Leebaert in his book Magic and Mayhem said that the war was an American victory after the war of attrition

A

The Korean War

Background

1910 - 1945

  • Korea had most prominent communist groups and activists

  • worked underground to re-establish Korean independence when Japan occupied Korean Peninsula in 1910-1945

Post-WW2 Occupation

  • Korea occupied by USSR in north and USA in south in 1945

  • chosen 38th parallel also used to separate Japan and Russia in early 20th century

Causes

Kim Il-Sung

  • heroic guerrilla commander as 33-year-old Soviet Army captain

  • Soviets made him head of provisional government for North Korea in early 1946

  • made premier of Democratic People’s Republic of Korea on September 9th, 1948

Progression & Economy

  • Kim bought into Korean nationalism and independence with the Korean People’s Army

    • 2 million acres of land redistributed in under amonth

    • women guaranteed equality under the law

    • political action cells educate population

  • North Korea advanced under Kim’s rule

  • USA and USSR left peninsula in June 1949

Syngman Rhee

  • educated and became Christian in US in early 1900s

  • campaigned for Korean independence and was in provisional government

    • attended Treaty of Portsmouth and Washington Naval Conference

      • Roosevelt did Treaty of Portsmouth

    • Tried to go to Versailles negotiations in 1919

    • opposed trusteeship negotiations between USA and USSR

  • elected president of Republic of Korea July 20, 1948

  • used torture, extralegal police measures, and assassination to repress left

Kim Il-Sung & Syngman Rhee

  • wanted to rule an independent Korea

  • opposed to Korea becoming a trusteeship

  • chose sides in the Cold War

  • needed outside help to defeat the other

The Cold War

  • Truman Doctrine - USA would lend aid to anti-communist countries

  • Domino Effect - Truman thought that if Korea fell to communism, then major trading partner Japan will follow

  • Stalin wanted to indirectly beat the US so he support the spread of communism as long as it did not result in a war with America

  • Stalin especially wanted to prove USSR’s worth after humiliation of Berlin Blockade

US Ambivalence

  • Sept. 1947

    • JCS assessed that US had little interest in maintaining military in Korea

  • Apr. 1948

    • NSC recommended withdrawing forces but providing $150 million in non-military aid

  • Jan. 1950 - Pacific Perimeter Speech

    • Secretary Acheson described Pacific Sphere without including Korea

    • House of Representatives narrowly reject Korean Aid Bill

United Nations

  • General Assembly recognizes Korea’s independence in Nov. 1947

  • UNTCOK to supervise elections

  • Soviets wouldn’t allow UNTCOK in North Korea

  • North Korea makes Democratic People’s Republic of Korea earlier in September

  • escalated border skirmishes and guerrilla activity in the south

  • June 27, 1950: UNSCR 83 declare North Korean actions were a breach of peace

  • July 7, 1950: UNSCR 8 authorized US to run a unified command of military forces from UN member states

  • UNC formed under MacArthur command

  • Rhee places all ROK forces under UNC command

Cheju 4.3 Incident

  • Apr. 1948 in Cheju-do Island

  • leftist South Korean Labor Party demonstrations for unification

  • Jeju march turn to chaos when police opened fire on a crowd and killed 6

  • escalated to coast and lasted the duration of the war

  • 30,000 died

Sung Courts Allies

Stalin

  • recent documents reveal that he wanted to convince Stalin to back an invasion after the faltering covert insurgency

  • Politburo considers military action by September 1949

    • Chinese Civil War

    • Soviet atom bomb

    • Establishment of NATO

    • Perceived US commitment to Korea

    • Soviet security in the East

    • Rhee

    • China

  • Stalin’s 3 demands

    • Decisive victory

    • Conflict will not escalate

    • no direct Soviet intervention

Mao

  • Mao is amenable

    • only military action would unify Korea

    • US won’t concern itself with Korea

    • Mao would “lean to one side”

South to Busan

  • North Korea invades June 25, 1950

  • Stalin gave the NKPA lots of tanks, artillery, and small arms

  • organized as conventional CCP army with many Chinese Civil War veterans

  • ROK army under-trained and under-equipped

  • Major-General Chae-Pyongdok rejects plan to withdraw south

  • Kaesong falls in 4 hours with typical NKPA tactics

    • T-34 disease - soldiers run away from the sound of the tank

  • Chunchon holds for 3 days but rest of the front collapses

  • fleeing refugees

  • Han bridge hastily blown up

  • ROK routed and Seoul falls June 28, 1950

  • Delays reduce ROK to Busan Perimeter and area around the southeast coast

US 8th Army

  • T-34 armored brigades overran Task Force Smith

  • Bazookas and M-26 Pershings (famous general in WW1) return assault

Incheon Landing

  • Sept 15, 1950

  • Kim neglected sea power so Britain and USA could control it with impunity

  • difficult landing involving an amphibious assault and urban warfare

  • successful - cut North Korean logistical lines and divided their forces

  • captured Wolmi-do airstrip

  • Gen. Walker breaks out of Busan Perimeter

  • Battle of Naktong Bridge at Busan Perimeter saw annihilation of NKPA

To the Yalu

  • October 7, 1950

  • UN allowed MacArthur to cross 38th parallel to unite all of Korea

  • MacArthur ignored Chinese warnings

  • Chinese and Soviets feared America on their borders

  • Mao saw Americans as arrogance

  • 8th Army and UNC push on diverging lines of advance

  • Pyongyang captured October 20, 1950

First Phase Offensive

  • UNC and 8th Army push through North Korea with NKPA rout

  • 180,000 CPV soldiers over the border

  • MacArthur overextends his forces and falls into Gen. Peng Dehuai’s trap

  • poorly equipped CPV (even with Soviet help) has many advantages:

    • veterans

    • night fighters

    • good at deception

    • high morale

Battle of the Chosin Reservoir

  • during Second Phase Offensive

    • started Nov. 25, 1950

  • IX CVP Corp attempt to encircle X US Corp

  • Chinese fighters in mountains fired at road-bound Marines on all sides

  • F4U fighter-bombers supported the defense

  • Marines retreat back to 38th parallel

  • Biggest battle of the Korean War

  • first phase of the war ends

“Old soldiers never die. They just fade away.”

  • MacArthur wanted total victory

    • unite Korea

    • remove PRC threat to Asia

      • worked before, but not during, the era of nuclear warfare

    • Nuke them

  • JCS wanted to avoid escalation

  • MacArthur outline plan to the press

    • he did this to try to become president

    • got fired on Apr. 14, 1951

    • General Ridgway takes his command

Old Iron Tits

  • Ridgway understands that the war can’t escalate

    • warfare changed since WW2

    • against nuclear weapons

    • advocates attrition

      • “the meatgrinder”

        • try to kill more of them over minimizing your casualties

  • called “Old Iron Tits” because he carried grenades around his neck

  • Institutes front reforms

    • officers lead from the front

    • Strong logistical support

    • deploy units into hills and off the roads to avoid Marines getting killed

    • attrition is operational doctrine

    • “Find them! Fix them! Fight them! Finish them!”

      • “Fix them” means to surround them to keep them there and prevent them from escaping or leaving

  • Third Phase Offensive forces Ridgway out of Seoul

    • CPV supply lines stretched to breaking and Peng had to withdraw

MiG Alley

  • MiG 15s established control between Chongchon and Yalu Rivers in the northwest corner of Korea

  • Operation Strangle

    • US FEAF mission was interdiction of North Korean lines

  • but they are losing a lot of people in MiG Alley

  • Jul-Nov 1951 - NKPA swept from air and North Korean industrial centers strategically bombed

  • Cold War understanding develops with CPV in Korea

    • Communists wouldn’t bomb Japan, South Korea, UNC Naval forces

    • No UNC aircraft within 3 miles of China

    • NO UNC aircraft within 20 miles of USSR

  • Planes used:

    • North American F-51 Mustang

    • Lockheed F-80 Shooting Star

    • Republic F-84 Thunderjet

    • Boeing B-29 Stratofortess

    • Gloster Meteor

    • Martin B-26 Invader

    • F-86 Sabre

      • only USAAF swept-wing jet

      • countered MiG 15

      • Tough and fast

      • easy to fly

      • outmaneuvered the MiG 15 at high speed

      • 6.50 caliber machine guns

    • MiG 15 ‘Fagot’

      • Dominated Korea until the Sabre

      • Climbed faster than the Sabre

      • flew higher than F-86

      • Cannons had better stopping power than F-86

      • Less experienced pilots

      • more MiGs

  • air offensive by Communist forces at the end of 1951 forced draw in air war

    • MiG Alley would belong to MiG-15

    • Superfortress daylight bombing into North Korea and FEAF Fighter-bomber operations here permanently abandoned

Naval Air War

  • Vought F4U Corsair

  • Grumman F9F Panther

  • Douglas A-1 Skyraider

  • Sikorsky HO3S-I

  • Helicopters in warfare now

The War of Attrition

  • fighting continued along 38th parallel for the rest of the war

    • made to force Communists to bargain

    • trench warfare like WW1

    • Prefigured later wars of attrition

  • Item Four of the cease-fire negotiations proved intractable

    • Communists feared mass defections would erode utopia of their ideology

    • May 7, 1952 - Koje-do pro-communist POWs rioted and captured the prison commandant

    • China and North Korea used the riot to prove UNC demand as unfounded

  • more American apathy

    • “Why die for a tie?”

    • understated “police action”

    • Republican Congress said concept of limited war was appeasement

      • Omar Bradley attacked this in testimony during MacArthur Hearings

        • said that fighting Red China would be the wrong fight at the wrong place and time with the wrong enemy

        • we don’t understand limited wars but that’s how most wars are fought

  • war starts to die down

Operation Showdown

  • Acting CPV commander Deng Hua decided on ‘Active positional defense’ doctrine resembling Ridgway’s methods

  • See-saw battles to decrease casualties

  • Battle of Kumsong Bulge

    • Van Fleet’s defense suffered 9,000 casualties

    • Chinese suffered 11,500

    • even losses

End of the War

The War Ends July 27, 1953

  • reasons

    • Chinese and North Koreans could no longer sustain the war

    • Eisenhower was elected

    • Stalin dies

  • Little Switch

    • Progress made on proposal by chief negotiator Clark to exchange sick adn wounded soldiers

    • during negotiation, China gave in on repatriation and compromised with Neutral Nations Repatriation Commission

  • Both sides continued fighting in this process

    • NSC 147 codified escalation if China did not give in

  • Rhee refuses to sign until US promises military and financial support

  • China and the USSR

    • China paid for most of the war

    • did bring them closer together

      • but China galled at Stalin insisting that China pay for the aid

  • Klausewitz observed that the war is fought until it comes to an end

The Korean War Armistice

  • made to insure end to warfare and all armed force acts in Korea until definitive peace occurred

  • covered issues like

    • POWs exchange

    • demarcation line located

  • Provided

    • suspended open hostilities

    • fixed demarcation line with 4 km buffer zone of demilitarization

    • mechanism for POWs transfer

The Death of Total War

  • Atomic weapons multiply warfare’s destructiveness and opponent may resort to them when facing major defeat

  • conventional warfare itself is expensive and exhausting

  • Cold War’s zero-sum game meant any conflict could involve the superpowers

  • maybe the biggest disaster is that intellectuals and foreign-policy experts like Derek Leebaert in his book Magic and Mayhem said that the war was an American victory after the war of attrition