ARTICLE 31U.K.
The selection of personnel for return under Article 30 shall be made irrespective of any consideration of race, religion or political opinion, but preferably according to the chronological order of their capture and their state of health.
As from the outbreak of hostilities, Parties to the conflict may determine by special agreement the percentage of personnel to be retained, in proportion to the number of prisoners and the distribution of the said personnel in the camps.