Related Rule
Greece
Practice Relating to Rule 64. Conclusion of an Agreement to Suspend Combat with the Intention of Attacking by Surprise the Adversary Relying on It
The Hellenic Territorial Army’s Internal Service Code (1984), as amended, provides: “It is forbidden for members of the armed forces: … To maltreat, injure or kill the enemy … with whom a truce has been agreed.” 
Greece, Hellenic Territorial Army Regulation of Internal Service Code, Presidential Decree 130/1984 (Military Regulation 20-1), as amended, Article 15(a).