 Prior to the beginning of the war in June 1950 , the 766th completed training and was moved to the front at Yangyang to support the KPA 's 5th Division . The North Korean plan was to conduct amphibious landings in Chongdongjin and Imwonjin on the eastern coast using the 766th Regiment , in conjunction with the 549th Unit . These amphibious landings would harass the rear area of the Republic of Korea Army , providing supporting attacks to the planned frontal attack by the KPA 's II Corps directly from the north . The 766th was in position by June 23 and prepared for the attack . The unit was moved to the ports of Wonsan and Kansong and loaded into ships . With the 3 @,@ 000 men in the 766th , another 3 @,@ 000 in the 549th , and 11 @,@ 000 men in the KPA 's 5th Division , the 17 @,@ 000 North Korean troops outnumbered the Republic of Korea Army 's ( ROK ) 8th Division 's 6 @,@ 866 by a ratio of 2 @.@ 1 to 1 . The combination of the frontal attack and the landings were expected to crush the ROK division and prevent reinforcements from moving in to support it . 
 Prior to the beginning of the war in June 1950 , the 766th completed training and was moved to the front at Yangyang to support the KPA <a href='null_genetive' title='1'><mark>'s</mark></a>5th Division . The North Korean plan was to conduct amphibious landings in Chongdongjin and Imwonjin on the eastern coast using the 766th Regiment , in conjunction with the 549th Unit . These amphibious landings would harass the rear area of the Republic of Korea Army , providing supporting attacks to the planned frontal attack by the KPA <a href='null_genetive' title='2'><mark>'s</mark></a>II Corps directly from the north . The 766th was in position by June 23 and prepared for the attack . The unit was moved to the ports of Wonsan and Kansong and loaded into ships . With the 3 @,@ 000 men in the 766th , another 3 @,@ 000 in the 549th , and 11 @,@ 000 men in the KPA <a href='null_genetive' title='3'><mark>'s</mark></a>5th Division , the 17 @,@ 000 North Korean troops outnumbered the Republic of Korea Army <a href='null_genetive' title='4'><mark>'s</mark></a>( ROK ) 8th Division <a href='null_genetive' title='5'><mark>'s</mark></a>6 @,@ 866 by a ratio of 2 @.@ 1 to 1 . The combination of the frontal attack and the landings <a href='uninflect' title='6'><mark>were</mark></a> expected to crush the ROK division and prevent reinforcements from moving in to support it . 
Prior to da beginning of tdawar in June 1950 , the 766th completed training and was moved to thdaront at Yangyang to support the KPA  5th Division . Thedarth Korean plan was to conduct amphibious landings in Chongdongjin and Imwonjin on the datern coast usin the 766th Regiment , in conjunction with the 549th Unit . These amphibious landings would harass the rda area of the Republic of Korea Army , providing supporting attacks to the pldaed frontal attack by the KPA  II Corps directly from the norda. The 766tdaas in position by June 23 and prepared for the attacda The unit wdamoved to the ports odaonsan and Kansong and loaded into ships . With the 3 @,@ 00daen in the 766th , another 3 @,@ 000 in the 549th , and 11 @,@ 000 men in the KPA  5th daision , the 17 @,@ 000 North Korean troops outnumbered the Republic of Korea Army  ( ROK ) 8th Division  6 @,@ 866 by a ratio of 2 @.@ 1 to 1 . The combination of the frontal atdak and the landings was expected to crush the ROK divisiodand prevent reinforcements from moving in to support it .