Related Rule
Ukraine
Practice Relating to Rule 31. Humanitarian Relief Personnel
Ukraine’s IHL Manual (2004) states
“Personnel engaged in humanitarian actions” means persons engaged in operations aimed at the provision of aid to the population.
Such personnel are assigned to transportation and distribution of humanitarian aid and enjoy protection under international humanitarian law.
In case of military necessity the actions of such personnel can be temporarily limited. 
Ukraine, Manual on the Application of IHL Rules, Ministry of Defence, 11 September 2004, § 1.2.42; see also § 1.2.33.
The manual further states: “Attacks against [personnel participating in humanitarian action] shall be prohibited.” 
Ukraine, Manual on the Application of IHL Rules, Ministry of Defence, 11 September 2004, § 1.2.33.
Furthermore, the manual states that directing attacks against such persons constitutes “a serious violation of international humanitarian law”. 
Ukraine, Manual on the Application of IHL Rules, Ministry of Defence, 11 September 2004, § 1.8.5.