The Geneva Convention (1929) was signed at Geneva, July 27, 1929. Its official name is the Convention relative to the Treatment of Prisoners of War, Geneva July 27, 1929. It entered into force 19 June 1931. It is this version of the Geneva Conventions which covered the treatment of prisoners of war during World War II. It is the predecessor of the Third Geneva Convention signed in 1949.
Article 1: makes explicit reference to Articles 1 2 and 3 of Hague Conventions respecting the laws and customs of war on land(Hague IV), of October 18, 1907, to define who are lawful combatants and so qualify as Prisoners of War (POW) on capture. In addition to combatants covered by Hague IV, some civilians are also covered in the section of this Convention called the "Application of the Convention to certain classes of civilians".
Articles 2, 3 and 4: Specifies that POW are prisoners of the Power which holds them and not prisoners of the unit which takes their surrender; that POWs have the right to honor and respect, and that women shall be treated with all the regard due to their sex, and that prisoners of a similar category must be treated in the same way.