The conflict Hostile_encounter escalated into warfare Hostile_encounter when North Korean military ( KPA ) forces—supported by the Soviet Union and China—crossed the border and advanced Cause_to_make_progress into South Korea on 25 June 1950 .

In September 1950 , an amphibious UN counter-offensive was launched Military_operation at Incheon , and cut off Removing many KPA troops in South Korea .

During the night of 4/5 November , the PVA and Korean People 's Army ( KPA ) mounted a full-scale assault on the US 24th Infantry Division , pushing Motion back an American infantry regiment nearly .

The PVA and KPA were temporarily forced Motion to withdraw Escaping north , while the UN successfully reinforced Cause_change_of_strength its positions Placing , holding Defending on the Chongchon Line .

The battle Hostile_encounter was fought Hostile_encounter between Australian forces from 3rd Battalion , Royal Australian Regiment ( 3 RAR ) and the 17th Tank Brigade of the Korean People 's Army ( KPA ) for control of Chongju , North Korea and the surrounding area .

After detecting Know a strong KPA armoured force equipped Supply with T-34 tanks and SU-76 self-propelled guns on a thickly wooded ridgeline astride the line of advance Self_motion , the Australians launched Process_start a series of company attacks Attack with American M4 Sherman tanks and aircraft in support Supporting .

Despite heavy resistance Defending the KPA were forced Conquering to withdraw Escaping and the Australians captured Conquering their objectives after three hours of fighting Hostile_encounter .

That evening the KPA were strongly reinforced Cause_change_of_strength , attacking Attack the Australian southern flank manned Giving by D Company 3 RAR , and partially penetrating Destroying their perimeter .

After two hours of fighting Hostile_encounter the assault Attack was repulsed Defending , and the KPA subsequently launched Process_start a furious assault Attack against A Company 3 RAR on the northern position , which also failed Earnings_and_losses amid heavy losses Earnings_and_losses .

The following day the Australians advanced Self_motion to the high ground overlooking Chongju , killing Killing and capturing Conquering a number of KPA in skirmishes .

KPA casualties Death during the fighting Hostile_encounter were heavy , while Australian losses Earnings_and_losses included Cause_to_be_included their commanding officer , Lieutenant Colonel Charles Green , who was wounded Bodily_harm in the stomach by artillery fire after the battle Military_operation and died Death two days later .

The battle Hostile_encounter ended Process_end in a victory for the United Nations after large numbers of United States Army ( US ) and Republic of Korea Army ( ROK ) troops repelled Defending a strong Korean People 's Army ( KPA ) attack .

The division , which was untried in combat , was struck Attack with a strong attack by several KPA divisions which crossed the river and struck all along the division 's line .

The force of the attack split Forming_relationships the 2nd Infantry Division in half , and the KPA were able to penetrate to Yongsan , promoting a fight there .

In two weeks of heavy fighting , the US forces were able to force Request the KPA out of the Naktong Bulge region .

The KPA were outflanked by the Inchon landings on 15 September and on 16 September the UN forces began Process_start their breakout from the Pusan Perimeter which drove the KPA from the area .

The KPA were outflanked by the Inchon landings on 15 September and on 16 September the UN forces began Process_start their breakout from the Pusan Perimeter which drove the KPA from the area .

Republic of Korea Army ( ROK ) units had been unsuccessfully resisting Defending advances by the North Korean Korean People 's Army ( KPA ) in the region when they were reinforced Cause_change_of_strength by the United States Army 's 25th Infantry Division , newly arrived in Arriving the country .

In the subsequent fight Hostile_encounter , the 25th Infantry Division was able to inflict Bodily_harm substantial casualties Catastrophe on the advancing Cause_to_make_progress KPA 15th Infantry Division but was not able to hold Defending its positions Placing .

In coordination with the Chinese capture Conquering of Seoul on the western front , the North Korean Korean People 's Army ( KPA ) attempted to capture Wonju in an effort to destabilize the UN defenses along the central and the eastern fronts .

After a joint Collaboration Chinese People 's Volunteer Army ( PVA ) and KPA assault breached the UN defenses at Chuncheon on New Year 's Eve of 1951 , KPA V Corps attacked Attack US X Corps at Wonju while KPA II Corps harassed US X Corps ' rear by engaging in guerrilla warfare .

After a joint Collaboration Chinese People 's Volunteer Army ( PVA ) and KPA assault breached the UN defenses at Chuncheon on New Year 's Eve of 1951 , KPA V Corps attacked Attack US X Corps at Wonju while KPA II Corps harassed US X Corps ' rear by engaging in guerrilla warfare .

After a joint Collaboration Chinese People 's Volunteer Army ( PVA ) and KPA assault breached the UN defenses at Chuncheon on New Year 's Eve of 1951 , KPA V Corps attacked Attack US X Corps at Wonju while KPA II Corps harassed US X Corps ' rear by engaging in guerrilla warfare .

In response , US X Corps under the command Control of Major General Edward Almond managed Control to cripple the KPA forces at Wonju , and the UN forces later carried out Action a number of anti-guerrilla operations against the KPA infiltrators .

In response , US X Corps under the command Control of Major General Edward Almond managed Control to cripple the KPA forces at Wonju , and the UN forces later carried out Action a number of anti-guerrilla operations against the KPA infiltrators .

In the aftermath of the battle , the KPA forces on the central and the eastern fronts were decimated Destroying , allowing Preventing_or_letting the UN front to be stabilized Cause_change_of_strength at the 37th parallel .

The battle Hostile_encounter ended Process_end in a victory Earnings_and_losses for the UN after their forces were able to drive Motion off an attempted offensive Attack by three North Korean Korean People 's Army ( KPA ) divisions in the mountainous eastern coast of the country .

When several divisions of the KPA crossed Motion_directional through mountainous terrain to push the UN forces back , a complicated battle Hostile_encounter ensued Coming_to_be in the rugged terrain around P'ohang-dong , which contained Containing the vital supply line to the main UN force at Taegu .

For two weeks KPA and ROK units fought Hostile_encounter in several bloody back-and-forth battles Hostile_encounter , taking Conquering and retaking Conquering ground in which neither side was able to gain Getting the upper hand .

Finally , following the breakdown Destroying of the KPA supply lines and amidst mounting casualties , the exhausted North Korean troops were forced Causation to retreat Escaping .

The battle Hostile_encounter was a turning point in the war Military_operation for KPA forces , which had seen Perception_active previous victories owing to superior numbers and equipment , but the distances and demands exacted on them at P'ohang-dong rendered Causation their supply lines untenable .

It followed a week of fighting Hostile_encounter between the Korean People 's Army ( KPA ) 13th Division and the Republic of Korea Army 's ( ROK ) 1st Division along the latter 's last defensible line in the hills north of the city .

For another week , KPA divisions launched Process_start all the troops they had in massed attacks Attack against the ROK and US lines .

Each KPA attack Attack ran Self_motion into well-established UN lines , where US tanks , mines and entrenched infantry were positioned Placing to counter Attack them .

Strikes Attack by US aircraft ravaged Attack the attacking Attack KPA .

The fighting Hostile_encounter was fierce with many casualties on both sides , particularly where the KPA and ROK fought Hostile_encounter one another .

The battle Hostile_encounter ended Process_end in a victory for the UN after large numbers of US Army ( US ) and Republic of Korea Army ( ROK ) troops were able to repel Defending the repeated attacks Attack of two North Korean Korean People 's Army ( KPA ) divisions .

Throughout the six-week battle Hostile_encounter , the KPA 6th and 7th Divisions attacked Attack the 25th Division 's regiments in an attempt to break Destroying through the UN forces and attack Attack Pusan .

An initial UN counteroffensive Attack out of Masan proved ineffective in stopping Process_end the KPA from advancing Cause_to_make_progress .

In the subsequent fight Hostile_encounter , the 35th Infantry was able to repel Defending the KPA at the Battle Hostile_encounter of Nam River and were highly regarded for these actions .

However , the 24th Infantry performed Hold very poorly at the battles Hostile_encounter of Blue Mountain and Haman , forcing Causation the 25th Division to muster reserves to counter the KPA gains against the 24th .

While conducting Action Operation Military_operation Wonsan against sea mines in Wonsan Harbor , a squadron of US Navy warships was attacked Attack by Korean People 's Army ( KPA ) batteries .

The KPA fired Use_firearm on American survivors in the water , wounding Bodily_harm several men .