Related Rule
Argentina
Practice Relating to Rule 11. Indiscriminate Attacks
Argentina’s Law of War Manual (1989) provides that it is a grave breach to intentionally launch an indiscriminate attack causing death or serious injury to body or health. 
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, § 8.03.
The manual also provides: “The prohibition of attacking civilian persons and civilian objects comprises all acts of violence, whether offensive or defensive. Indiscriminate attacks are included in such prohibition.” 
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, § 4.03.