Соответствующая норма
Practice Relating to Rule 145. Reprisals
Section E. Termination of reprisals as soon as the adversary complies again with the law
Kenya’s LOAC Manual (1997) states: “Under customary law, reprisals are permitted to counter unlawful acts of warfare. They can only be taken if: … they cease when the violation complained of ceases.” 
Kenya, Law of Armed Conflict, Military Basic Course (ORS), 4 Précis, The School of Military Police, 1997, Précis No. 4, p. 4.