IHL Key Concepts and Philippine Implementation — Quick Notes

What is International Humanitarian Law (IHL)?

IHL, also called the law of armed conflict, sets the rules for how war is conducted to protect those not participating in hostilities or who no longer participate, and to regulate weapons and methods of warfare in order to preserve human dignity and reduce suffering.

When IHL Applies

IHL applies in all armed conflict situations: international armed conflicts (between at least two states) and non-international armed conflicts (within a single state). Internal disturbances or tensions can escalate into armed conflict, and some IHL rules may operate alongside international human rights law. Both states and non-state armed groups are bound by IHL.

History and Evolution

The humanitarian impulse behind IHL began with the battle of Solferino in $1859$, which inspired Henry Dunant and the book $AA Memory of Solferino$ published in $1862$. This led to the formation of the International Committee of the Red Cross (ICRC) and the 1864 Geneva Convention. Over time, Geneva Conventions expanded to protect the wounded, sick, shipwrecked, prisoners of war, and civilians, with emblems like the Red Cross, Red Crescent, and Red Crystal (neutral symbols). Dunant was awarded the Nobel Peace Prize in $1901$. Additional protocols and related treaties (e.g., Hague, Ottawa) further shaped IHL and the protection of civilians and combatants under modern humanitarian law.

Core Principles of IHL

Key principles include: distinction (identifying civilians versus combatants and recognizing direct participation in hostilities), proportionality (force used must be proportionate to military objective), and precautions (feasible steps to avoid civilian harm). IHL also protects medical personnel and facilities, and restricts means and methods of warfare. Emblems (Red Cross, Red Crescent, Red Crystal) symbolize protection for those not or no longer taking part in hostilities.

Means and Methods of Warfare and Prohibited Weapons

IHL regulates means and methods of warfare and bans or restricts weapons that cannot distinguish between civilians and combatants or cause indiscriminate harm. Cluster munitions and chemical/poisonous gases illustrate prohibited or restricted means. Nuclear weapons are regulated but not outright banned by IHL alone, due to sovereignty, security, and political considerations; broader disarmament efforts continue alongside IHL.

Protection of Civilians and Medical Personnel

Civilians are protected from direct attacks; those who are wounded, sick, or detained must be treated with dignity, and medical personnel, ambulances, and facilities must be protected and allowed to operate. Attacks on medical personnel or facilities are prohibited, as is the hostile targeting of civilians or humanitarian workers.

Geneva Conventions and Emblems

The ICRC and the Geneva Conventions frame humanitarian protections, with neutral emblems: Red Cross, Red Crescent, and Red Crystal (and, in some contexts, the Red Crystal for neutral states). Emblems protect medical and humanitarian personnel and facilities, regardless of sides in conflict.

International Human Rights Law vs International Humanitarian Law

IHL applies specifically to times of armed conflict and governs conduct during warfare, while international human rights law applies at all times, including in peace and during emergencies. IHL holds all parties to account for violations of the laws of war, while human rights law addresses rights and remedies more broadly.

National Implementation and Accountability (Philippines)

In the Philippines, generally accepted principles of international law are part of the law of the land under $Article II, Sec. 2$ of the 1987 Constitution. Republic Act No. $9851$ (adopted in $2009$) penalizes crimes against IHL and other international crimes, establishing individual criminal responsibility and addressing command responsibility (superiors liable for subordinates’ offenses). The ICRC serves as a reference on IHL but does not prosecute crimes; accountability is through national courts under RA $9851$ and related laws.

Practical Considerations and Challenges

Applying IHL is particularly challenging in urban warfare, where protecting civilians and civilian infrastructure is difficult. The principle of distinction means identifying combatants; a civilian who directly participates in hostilities loses protection. Precautions require parties to minimize civilian harm and ensure care for the wounded, while acknowledging that enforcement, verification, and accountability can be complex in practice.

Conclusion

International humanitarian law seeks to preserve human dignity in times of war by setting limits on how wars can be fought and by facilitating post-conflict recovery. It does not condone war, but it provides a framework to reduce suffering and to protect those not or no longer participating in hostilities, ensuring that civilians and medical personnel are spared as much as possible and that combatants are held to account for violations.