Соответствующая норма
Nigeria
Practice Relating to Rule 109. Search for, Collection and Evacuation of the Wounded, Sick and Shipwrecked
Nigeria’s Military Manual (1994) states: “As soon as the tactical situation permits, necessary measures shall be taken to search for [and] collect … the wounded [and] shipwrecked”. 
Nigeria, International Humanitarian Law (IHL), Directorate of Legal Services, Nigerian Army, 1994, p. 13, § 4; see also p. 39, § 5(f) and (h) and p. 46, § 16(g).
Nigeria’s Manual on the Laws of War states: “At all times and particularly after a campaign, the belligerents must immediately take all possible measures to search for and collect the wounded and sick”. 
Nigeria, The Laws of War, by Lt. Col. L. Ode PSC, Nigerian Army, Lagos, undated, § 34.
The manual also states:
Whenever possible, an armistice or cease-fire should be arranged or local arrangements should be made to enable the transfer, exchange and carriage of the wounded who have been left on the battlefield. 
Nigeria, The Laws of War, by Lt. Col. L. Ode PSC, Nigerian Army, Lagos, undated, § 34.
Nigeria’s Soldiers’ Code of Conduct states: “The wounded enemy shall be collected”. 
Nigeria, Code of Conduct for Combatants, “The Soldier’s Rules”, Nigerian Army, undated, § 6.
It adds: “The wounded and shipwrecked enemies at sea shall be accorded similar respect and protection.” 
Nigeria, Code of Conduct for Combatants, “The Soldier’s Rules”, Nigerian Army, undated, § 8.