相关规则
Greece
Practice Relating to Rule 146. Reprisals against Protected Persons
Section C. Medical and religious personnel in the power of the adversary
The Hellenic Navy’s International Law Manual (1995) provides:
[T]he protection [against reprisals in the context of armed conflict] extends also to the personnel of hospitals and mobile hospital units of any type, as well as to religious personnel, according to art. 20 of Add. Protocol I of 1977. 
Greece, International Law Manual, Hellenic Navy General Staff, Directorate A2, Division IV, 1995, Chapter 4, § 7(a).