Related Rule
Ukraine
Practice Relating to Rule 30. Persons and Objects Displaying the Distinctive Emblem
Ukraine’s IHL Manual (2004) states: “The following methods of warfare shall be prohibited: … attacks against medical units or sanitary [medical] transport which possess necessary distinctive emblems (signs) and signals”. 
Ukraine, Manual on the Application of IHL Rules, Ministry of Defence, 11 September 2004, § 1.3.2.