d. Military Necessity

Military Necessity

Concept

Military necessity matters to the treatment of property during armed conflict, but it is not a general excuse for conduct otherwise classified as a war crime. Military necessity is expressly relevant to extensive destruction and appropriation of protected property. (Sec. 4, Rep. Act No. 9851)¹ (Art. 8, Rome Statute)²

Governing provisions

• Section 4(a)(4) of Republic Act No. 9851 lists, among grave breaches in an international armed conflict, extensive destruction and appropriation of property protected by the relevant Geneva Convention when it is not justified by military necessity and is carried out unlawfully and wantonly. (Sec. 4, Rep. Act No. 9851)¹
• Article 8(2)(a)(iv) of the Rome Statute identifies the same form of extensive destruction and appropriation of protected property as a grave breach, with the qualifications concerning military necessity and unlawful and wanton conduct. (Art. 8, Rome Statute)²
• In applying and interpreting Republic Act No. 9851, Philippine courts shall be guided by the international-law sources identified in Section 15, including the Geneva Conventions, applicable protocols, customary international law, and decisions of international courts and tribunals. (Sec. 15, Rep. Act No. 9851)³

Requisites / Rules

For the property-related grave breach stated in Section 4(a)(4), check the provision’s combined qualifications rather than isolating the words “military necessity”: (Sec. 4, Rep. Act No. 9851)¹

• The setting is an international armed conflict, and the act concerns property protected under the relevant Geneva Convention. (Sec. 4, Rep. Act No. 9851)¹
• The conduct involves extensive destruction and appropriation of that property. (Sec. 4, Rep. Act No. 9851)¹
• The destruction and appropriation is not justified by military necessity and is carried out unlawfully and wantonly. The statutory formulation requires attention to these qualifications together. (Sec. 4, Rep. Act No. 9851)¹

Distinctions

The express military-necessity qualification in Section 4(a)(4) concerns extensive destruction and appropriation of protected property. Section 4(a) separately lists acts against protected persons, including willful killing, torture or inhuman treatment, and willfully causing great suffering or serious injury. Do not import the wording of the property provision into those separate listed acts. (Sec. 4, Rep. Act No. 9851)¹

The cited property provision is framed as a grave breach in an international armed conflict. Section 4(b), by contrast, addresses serious violations of common Article 3 in a non-international armed conflict, including specified acts against persons taking no active part in hostilities. These are distinct statutory categories; the extract does not make the property provision a general rule for every conflict or offense. (Sec. 4, Rep. Act No. 9851)¹

Key doctrines

Accountability is not displaced merely because an act occurred in a military chain of command. Under Article 28 of the Rome Statute, a military commander or person effectively acting as one may be responsible for crimes by forces under effective command or authority and control when the stated knowledge and failure-to-act requirements are met. This is a rule on responsibility, not a definition of military necessity. (Art. 28, Rome Statute)⁴

Exceptions

Under Section 12 of Republic Act No. 9851, obedience to a government or superior order does not relieve a person of criminal responsibility unless the person was legally obliged to obey, did not know the order was unlawful, and the order was not manifestly unlawful. A claim that an act followed military orders must therefore be kept distinct from the military-necessity language governing the specified property offense. (Sec. 12, Rep. Act No. 9851)⁵ (Sec. 4, Rep. Act No. 9851)¹

Bar tip

For extensive destruction and appropriation of protected property, identify the conflict and property covered, then address both the absence of justification by military necessity and the requirement that the conduct be unlawful and wanton. Do not treat “military necessity” as a standalone answer to every alleged war crime. (Sec. 4, Rep. Act No. 9851)¹