Several hundred protesters marched in Dublin this afternoon to mark the third anniversary of the US-led invasion of Iraq.
The Dublin protest is part of a worldwide day of action and activists are distributing 20,000 black shamrock badges this weekend to highlight what they see as Irish complicity in Iraqi deaths.
In London, thousands of protesters gathered in a square near Parliament and Big Ben. They left white posters covered with red paint that looked like blood in a small park, then marched to Trafalgar Square, where a large rally was planned.
Police closed down streets in the heart of London's shopping and theater district for the demonstration, which organizers hoped would attract up to 100,000 people. Police had no immediate crowd estimates, but the protest began with thousands of people.
In Sweden, about 1,000 demonstrators gathered for a rally in Stockholm before a march to the US Embassy.
Anti-war demonstrations were also planned in Spain, Austria, Germany, Greece and Denmark.
