Règle correspondante
Greece
Practice Relating to Rule 65. Perfidy
Section E. Simulation of an intention to negotiate under the white flag of truce
The Hellenic Territorial Army’s Internal Service Code (1984), as amended, provides: “It is forbidden for members of the armed forces: … To use perfidiously the white flag.” 
Greece, Hellenic Territorial Army Regulation of Internal Service Code, Presidential Decree 130/1984 (Military Regulation 20-1), as amended, Article 15(h).
The Hellenic Navy’s International Law Manual (1995) provides that “the pretentious waving of a white flag in order to propose a truce” constitutes perfidy. 
Greece, International Law Manual, Hellenic Navy General Staff, Directorate A2, Division IV, 1995, Chapter 5, § 4.