NOTE: Korean time(I Time Zone) is ten hours earlier than Washington, D.C (R Time Zone).

June 25 North Korea invades South Korea with 135,000 men, initiating the Korean War.

June 26 US Ambassador Muccio  orders all nonessential Embassy personnel and US dependents to be evacuated

June 27  President Harry S. Truman deploys the 7th Fleet to waters off Taiwan to prevent the spread
of the conflict in Korea to other Far East waters.

Truman authorizes US air and naval strikes south of the 38th parallel to support ROK forces

First air victory of the war. A 68th All-Weather Squadron F-82 flown by Lt. William F. Hudson shoots down a North Korean Yak fighter. Two more enemy planes are destroyed in this air battle.

UN calls for military sanctions against North Korea. Asks member nations to assist in repelling aggression

BG John Church arrives in Korea from Japan with General Headquarters,Advance Command and Liason Group(GHQADCOM) team

June 28 ROK engineers blow up Han river bridges in Seoul, trapping much of the ROK army north of the river

Seoul falls to the KPA

UK Defense Committee places British naval forces in Japanese waters, 1 CVL,2 CA,5 DD and DE under the control of US Far East Command(FECOM)

June 29 Fifth Air Force's 3rd Bombardment Group sends 18 B-26 Invader light bombers against
Heijo Airfield near the North Korean capital of Pyongyang: 25 enemy aircraft are destroyed
on the ground; one Yak fighter is shot down.

Truman authorizes sea blockade and bombing of the DPRK. He also authorizes the sending of US ground troops to Korea to maintain the port of Pusan.

CL USS Juneau bombards Korean coast at Mukho.

RN ships join the U.S Naval Forces Far East(NAVFE)

Australia places Japan based DD and FF and 77th Squadron,RAAF, under  FECOM control

June 30 President Truman authorizes the use of US ground forces in Korea in a combat role
He signs Public Law 599. This extends the Selective Service until July 9,1951
Congress calls to active duty all Armed Forces reserve components for up to 21 months

July 1  First U.S. infantry unit arrives in Korea: 1st Battalion, 21st Infantry Regiment, 24th Infantry
Division. Along with Battery A of the 52nd Field Artillery Battalion, it comprises Task Force Smith.(406 infantrymen and 134 artillerymen) It is commanded by LTC Charles B.Smith. It is deemed the most combat ready battalion in the 24th Infantry Division.

July 2 Off Chumunjin, on Korea's east coast, the USS Juneau helps destroy three of four attacking North Korean torpedo boats.

July 3 MG William F. Dean, CG of the 24th Infantry Division, lands at Taejon airstrip. The rest of the division is enroute.

First UN carrier based air strike of the war when planes from the USS Valley Forge and HMS Triumph strike airfields in the Pyongyang-Chinnampo area in the DPRK.

Inchon falls to the KPA.

July 4 US Army Forces in Korea(USAFIK) is activated to control all US troops in Korea

General Dean assumes command of USAFIK with the United States Korea Military Advisory Group(KMAG) coming under his control. Pusan Base is organized to support port activities there.

MacArthur begins plans for amphibious operations against the KPA.

July 5 In the first US ground action of the war, 24th Infantry Division TF Smith (1/21 Infantry reinforced) engages and delays the advancing KPA forces at Osan.

July 6-8 The 24th Infantry Divsion's 34th Infantry Regiment delays the KPA at Pyontaek and Chonan

July 6  Fifty-seven Army nurses arrive in Pusan, Korea. They helped establish a hospital for the
wounded. Two days later, on July 8, twelve Army nurses moved forward with a mobile Army
surgical hospital (MASH) to Taejon.

July 7 The UN Security Council asks the US to serve as its Korean War excutive agent and to organize a United Nations Command for the prosecution of the war.

July 8 MacArthur appointed as the Supreme Commander of UN Forces in Korea.

July 8-12 The 24th Infantry Division's 21st Infantry Regiment delays the KPA at Choichwon

July 10-18 The 25th Infantry Division moves to Korea from bases in Japan

July 12 The 1st Cavalry Division begins loading in the Yokohama area for movement to Korea.

July 13 LTG Walton H.Walker arrives from Japan and establishes HQ Eighth Us Army(Forward)(EUSA) at Taegu

EUSA assumes command of all US ground forces in Korea.

Allied forces number 75,000 men; 18,000 US and 58,000 ROK

Pusan Logistical Command Replaces Pusan Base Command

July 13-18 The 24th Infantry Divisions 19th and 34th Infantry Regiments delay the KPA along the Kum River Line.They suffer 30 % casualties.

July 14 President Syngman Rhee of the ROK assigns control of his armed forces to General Douglas MacArthur, the CINC of United Nations Command

July 15 The 25th RCT sails from Okinawa for Korea.

July 17 CINCUNC delegates command of all Republic of Korea(ROK) forces to General Walker,CINC, 8th Army

First elements of 2nd US Infantry Division sail from Seattle to Korea

July 18 Lead elements of the 1st Cavalry Division make an unopposed landing at Pohang
General Walker asks the 24th Infantry Division to hold Taejon for two days while the 1st Cavalry Division moves into place

July 19 The 24th Infantry Division begins the defense of Taejon

President Truman gives the SecDef authority to mobilize the Organized Reserve and National Guard

Organized USMC Reserve orderd to report for active duty immediately. Volunteer USMC reserve ordered to report on August 15th,1950

July 20 The 24th Infantry Regiment, 25th Infantry Division , launches a counterattack at Yechon
Taejon falls to the KPA

MG William F. Dean,24th Infantry Division Commander, reported missing in action

July 22 Dept. of Army issues a call for reserve officers to volunteer for active duty

July 24 Fifth Air Force relocates headquarters from Japan to Korea

Armed Forces of North and South Korea

Intelligence Failure

Invasion Across the Parallel

The United States and the United Nations React

Emergency Conditions, Emergency Measures

A New Confidence

The North Koreans Cross the Han River

American Ground Forces Enter the Battle

Task Force Smith-A Leadership Failure-Colonel William J.Davies,1992

Task Force Smith at Osan, 5 July 1950,Extract

Bolstering the Forces

Delaying Action:P'yongt'aek to Choch'iwon

In the Central Mountains and the Eastern Coast

Eighth Army in Command

Disaster at the Kum River Line


The Front line Moves South

The Enemy Flanks Eighth Army in the West


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