Why Korean comfort women?

Why Korean comfort women during Korean War and why Korean collaborators? Because it is true. It all happened and it was all discuss probably before you were born. So we look to the academics and newspapers for reference.

From, The Construction of US Camptown Prostitution in South Korea: Transformation and Resistance by Lee, Na Young, 2006
 
'The term “comfort women” (wianbu) to refer to military prostitutes serving American soldiers signals the widespread acceptance of camptown prostitution as an inevitable means to entertain foreign soldiers. This term was commonly used in newspaper articles throughout the 1950s along with such phrases as “prostitutes catering to UN soldiers” and terms like yanggongju (Western princesses), or “UN madams” (woman getting a livelihood by serving UN soldiers).129 This usage continued during the 1960s and 1970s when camptown prostitution became more differentiated from non-U.S. military prostitution.  The Korean government’s policy on prostitution reflected its public’s perspectives on prostitution, which was, in the decades after the war, regarded as a necessary means to feed Korea’s impoverished population.'

The Chosun Ilbo or Daily News is major newspapers in South Korea 2,200,000 readers. Examples given are in Chosun Ilbo 23 August, 1960, it mentions, "In Pup’yLng, some 150 'comfort women dealing with American troops'. Similar reports using the words "comfort women" are: KyLnghyang Ilbo, 11/25/1955; Chosun ilbo, 11/08/1957; Chosun ilbo, 8/23/1960; Chosun ilbo, 12/03/1963. A “Comfort Women’s demonstration” is also reported in 1966. 

In the mid- to late-1960s, there were numerous articles in Chosun ilbo reporting crimes committed against camptown prostitutes by American soldiers that continued to used the term 'comfort women'. Korea college girls recruited for the Nangnang Club were also viewed as "yanggongju" or comfort women (Seoul Sinmun 26 July, 1952; 10 October, 1953). Post-war military brothels were still known as comfort stations and the system based on the Japanese one.

In 1958, the Chosun ilbo also accounts for the number of women involved as 300,000. The women who served “one American husband” were called “yangbuin” (Western madam) instead of the usual "yanggalbo" (western whore) who were generally treated by Korean society as “non-human beings”. Generally, the Yanggongju have been ignored in official Korean histories as a national shame until recent. 

Song-gun Chong in 1967 wrote, 3,000 so-called “comfort women” registered with the  Health Section of the Military and the Military Police Corps of the U.S. Army (“Current Situations of Korean Prostitutes and Countermeasures.” Pophak-nonchong 8:65-87.) 

You can download the main reference at http://www.lib.umd.edu/drum/bitstream/1903/4162/1/umi-umd-3959.pdf

References also arise in Yi, Imha. 2004a. The Korean War and Gende (Hankuk Chonjaengkwa Jaendo). Seoul: Sohaemunjip.

You must educate your self.