Justification For War
Claims about WMD programs have repeatedly been used to build domestic and international support for military action and sanctions.
In plain English
Weapons that can kill on a massive scale.
Weapons—nuclear, chemical, biological or radiological—that can kill or injure huge numbers of people at once.
Simple example
The George W. Bush administration cited intelligence that Iraq possessed weapons of mass destruction as a central justification for the 2003 invasion; the 2004 Duelfer Report later concluded Iraq had no such stockpiles at the time.
Why it matters
What the term actually changes.
Intelligence Credibility
How governments assess and present WMD threats affects public trust in intelligence agencies and the case for future interventions.
How it works
The mechanics, in practice.
Intelligence Assessment
Agencies collect and analyze information on suspected programs through satellites, informants, intercepts and inspections, then issue classified and public assessments.
International Inspections
Bodies such as the International Atomic Energy Agency and U.N. weapons inspectors verify compliance with treaties and Security Council resolutions.
Policy Response
Findings can trigger sanctions, diplomatic pressure, covert action or, as in 2003, military intervention authorized by national governments.
Related guide
Was the 2003 Iraq War justified in hindsight?
A look at the votes, evidence, costs, and consequences voters weigh when judging the Iraq War two decades later.
Read the guide → Related issue brief
Was the 2003 Iraq War Justified in Hindsight?
More than two decades after the U.S.-led invasion, Americans remain divided over whether the war's outcomes justified its costs.
Read the brief →You’ve learned the term. Now vote.
Was the 2003 Iraq War justified in hindsight?
Live results — 73 voters
Anonymous · one vote per person