Related Rule
Republic of Korea
Practice Relating to Rule 128. Release and Return of Persons Deprived of Their Liberty
Upon ratification of the 1977 Additional Protocol I, the Republic of Korea made a declaration in relation to paragraph 4(b) of Article 85 stating:
A party detaining prisoners of war may not repatriate its prisoners [against] their openly and freely expressed will, which shall not be regarded as unjustifiable delay in the repatriation of prisoners of war constituting a grave breach of this Protocol. 
Republic of Korea, Declarations made upon ratification of the 1977 Additional Protocol I, 15 January 1982, § 2.
Upon accession to the 1949 Geneva Conventions, the Republic of Korea stated: “The Republic of Korea interprets the provisions of Article 118 [of the 1949 Geneva Convention III], paragraph 1, as not binding upon a Power detaining prisoners of war to forcibly repatriate its prisoners against their openly and freely expressed will.” 
Republic of Korea, Interpretative declarations made upon accession to the 1949 Geneva Conventions, 16 August 1966.