Related Rule
Greece
Practice Relating to Rule 107. Spies
The Hellenic Navy’s International Law Manual (1995) provides: “A person acting undercover in the war zone or under false pretences with a view to obtain information for imparting it to the enemy is considered a spy.” 
Greece, International Law Manual, Hellenic Navy General Staff, Directorate A2, Division IV, 1995, Chapter 5, § 6.
The Hellenic Navy’s International Law Manual (1995) provides: “[Spies] can not benefit from the status of prisoner of war and may be tried and convicted even to death.” 
Greece, International Law Manual, Hellenic Navy General Staff, Directorate A2, Division IV, 1995, Chapter 5, § 6.