Chapter 51
The
Ethics of War and Pacifism
War is among humanity’s oldest and
most destructive practices. It arises when negotiation and diplomacy collapse,
when survival feels threatened, or when ambition drives conquest. Yet war does
not occur in a moral vacuum. Even in the midst of violence, humans wrestle with
ethical questions: When is it right to fight? What limits should govern combat?
And can war ever be truly just? The ethics of war, examined across philosophy,
religion, and international law, reflects the tension between necessity and morality
in human affairs.
Just
War Theory: The Search for Moral Boundaries
The dominant framework for assessing
the ethics of war is the “just war theory”, developed by thinkers such as
Augustine (4th century CE) and Thomas Aquinas (13th century CE). Just war
theory divides ethical concerns into two categories:
- Jus ad bellum (justice of
war): The criteria for deciding when going to war is just, such as
self-defense, last resort, legitimate authority, and proportionality. For
instance, resisting invasion is often cited as a legitimate cause.
- Jus in bello (justice in
war): Standards for conduct during war, including discrimination
(distinguishing combatants from non-combatants) and proportionality
(avoiding excessive force relative to objectives).
Later thinkers, such as Hugo Grotius
(17th century), expanded this framework, laying the foundation for
international law. The Geneva Conventions (20th century) represent modern
attempts to codify these ethical principles in binding legal agreements.
Realism:
Ethics as Irrelevant in War
In contrast, political realists
argue that war is not subject to morality. Thucydides, in The History of the
Peloponnesian War, famously depicted the “Melian Dialogue,” where Athenians
declared, “The strong do what they can, and the weak suffer what they must.”
From this perspective, war is governed by power, not ethics. Realism maintains
that survival and national interest override moral considerations. Modern
realists, such as Hans Morgenthau, echo this view, suggesting that moralizing
about war often disguises raw self-interest. The actions of the U.S. Executive
Branch of government in 2026 exemplify this perspective.
Pacifism:
The Rejection of War
At the opposite pole is pacifism,
the belief that war is never morally justifiable. Religious traditions such as
early Christianity, Buddhism, and Jainism have promoted nonviolence as an
absolute value. Modern pacifists, including figures like Mahatma Gandhi and
Martin Luther King Jr., argue that nonviolent resistance is both morally
superior and strategically effective. However, pacifism faces criticism for
being impractical in the face of aggression - such as Nazi Germany’s expansion
in the 1930s.
On a personal note, when I sat before
the San Jose, California, draft board in 1970 and pleaded my case for
Conscientious Objector status, I claimed to be an absolute pacifist. I knew
that solely opposing the Vietnam War (which I started doing publicly in 1963)
wouldn’t have led to approval of my submittal. Fortunately, they didn’t press
for an answer to the hypothetical question about what my stance would have been
in 1941. Yes, several of my mother’s close friends chose jail then instead of
taking up arms, but I have no idea if that would have been my choice.
Fortunately, my 1970 request was granted; I didn’t have to go to jail, and I served my country for two years counseling troubled youth in the States as a
CO.
Ethical
Dilemmas in Modern Warfare
The nature of war has changed
dramatically, raising new ethical challenges:
- Civilian Casualties and Technology. Drone strikes, aerial bombings, and cyberattacks blur the line
between combatants and civilians. Ethical frameworks must adapt to
technologies that increase both precision and the potential for
indiscriminate harm.
- Weapons of Mass Destruction. Nuclear, chemical, and biological weapons raise profound moral
questions because their destructive capacity violates proportionality and
discrimination. The bombings of Hiroshima and Nagasaki remain subjects of
heated ethical debate.
- Humanitarian Intervention. Should nations intervene militarily to stop genocide or mass
atrocities, as in Rwanda (1994) or Bosnia (1990s)? Intervention may save
lives but also risk unintended consequences and violations of sovereignty.
- Terrorism and Asymmetric Warfare. Non-state actors often exploit civilian populations, making
traditional ethical distinctions harder to apply. Counterterrorism
strategies, in turn, risk overreach and abuse.
Toward
a Global Ethical Framework
While war may never be eliminated
entirely, efforts to constrain it through shared ethics have advanced. The United
Nations Charter (1945) prohibits aggressive war, permitting force only
in self-defense or under UN Security Council authorization. The Geneva
Conventions (1949) protect civilians and prisoners of war. Philosophers such as
Michael Walzer (Just and Unjust Wars, 1977) argue that moral reasoning
remains vital in holding states and militaries accountable.
At the same time, critics warn that
ethical rhetoric is often used selectively, with powerful nations justifying
their wars as “just” while condemning their enemies. This underscores the need
for vigilance in ensuring that ethical principles are applied universally
rather than as tools of political convenience.
To summarize…
The ethics of war embodies a deep
paradox: war is both the breakdown of morality and the arena where moral
questions are most urgent. Just war theory provides guidance for when and how
wars might be fought ethically, while pacifism challenges us to imagine a world
without war. Realism reminds us of the harsh realities of power, but
international law and human conscience insist that even in war, limits matter.
The future of ethical warfare depends not only on rules and treaties but also
on the collective will to recognize shared humanity - even in conflict.
A world without war is an aspect of the Utopian ideal. Let's next explore that subject.