Related Rule
Croatia
Practice Relating to Rule 145. Reprisals
Section D. Order at the highest authority of government
Croatia’s LOAC Compendium (1991) states that a condition for reprisals is that the “decision [is] taken at [the] highest governmental level”. 
Croatia, Compendium “Law of Armed Conflicts”, Republic of Croatia, Ministry of Defence, 1991, p. 19.