In the single largest day of protest in world history, millions on 6 continents demonstrated against the U.S./U.K. plans to invade Iraq. Reported totals included 1 to 2 million in London and Rome; 1.3 million in Barcelona, Spain (a city of 1.5 million); 500,000 each in Berlin, Paris, Madrid, and New York.

Smaller demonstrations were held in over 600 cities and towns across the U.S., including tens of thousands in several cities, and 150,000 the following day in San Francisco.

Total participation is estimated at 25 million in more than 100 countries.