Related Rule
Ireland
Practice Relating to Rule 7. The Principle of Distinction between Civilian Objects and Military Objectives
Section B. Attacks against military objectives
Ireland’s Basic LOAC Guide (2005) states: “Enemy combatants and military objectives only may be the object of an attack.” 
Ireland, Basic Guide to the Law of Armed Conflict, TP/TRG/01-2005, Director of Defence Forces Training, Department of Defence, July 2005, p. 4.
Under Ireland’s Geneva Conventions (1962) Act as amended in 1998, any “minor breach” of the 1977 Additional Protocol I, including violations of Articles 48 and 52(2), is a punishable offence. 
Ireland, Geneva Conventions Act, 1962, as amended in 1998, Section 4(1) and (4).