The initial questions in wars (who started the shooting, who crossed the border) are factual and easy to answer, but governments often lie to absolve themselves of aggression.
Moral judgments on aggression require more than just knowing who initiated the violence; justifications and lies come first.
Aggression can begin without physical violence (shots fired or borders crossed).
Individuals and states have the right to defend against imminent violence, even if it's not actual yet.
This right is severely restricted in legal accounts.
Caroline case of 1842 (Daniel Webster): pre-emptive violence requires "a necessity of self-defense… instant, overwhelming, leaving no choice of means, and no moment for deliberation."
Webster's view: pre-emption is a last-minute reflex, triggered by an imminent attack.
This doesn't align with the experience of imminent war, where there's often time for deliberation.
The decision to strike first is strategic and moral and influences allied, neutral, and domestic opinions.
The legalist paradigm is more restrictive than the judgments we make; we sympathize with potential victims before instant necessity.
Spectrum of anticipation: from Webster's reflex to preventive war (responding to a distant danger).
Distinguishing the criteria that defend the decision to fight from the criteria thought to justify prevention is important.
Preventive war presupposes a standard for measuring danger, based on the balance of power.
Preventive war aims to maintain the balance by preventing a shift towards dominance.
The balance of power doesn't guarantee peace; it often requires force to defend it.
Edmund Burke (1760): The balance of power was