Related Rule
Argentina
Practice Relating to Rule 15. The Principle of Precautions in Attack
Argentina’s Law of War Manual (1989) states: “Feasible precautions are those which are practicable or practically possible taking into account all circumstances prevailing at the time, including humanitarian and military considerations.” 
Argentina, Leyes de Guerra, PC-08-01, Público, Edición 1989, Estado Mayor Conjunto de las Fuerzas Armadas, aprobado por Resolución No. 489/89 del Ministerio de Defensa, 23 April 1990, § 4.20.