Related Rule
Kenya
Practice Relating to Rule 46. Orders or Threats That No Quarter Will Be Given
Kenya’s LOAC Manual (1997) states: “It is forbidden … to order that there will be no survivors, to threaten the enemy therewith or to conduct operations on this basis.” 
Kenya, Law of Armed Conflict, Military Basic Course (ORS), 4 Précis, The School of Military Police, 1997, Précis No. 4, p. 2.