Thousands of demonstrators have been taking part in anti-war rallies around the world ahead of the fourth anniversary of the beginning of the US invasion of Iraq on Tuesday.
In Europe, Spain's protest was among one of the largest.
At rallies in Sydney and Melbourne protestors called for the immediate withdrawal of Australian troops from Iraq and Afghanistan.
In Washington, thousands of people marched to the Pentagon.
Police have found the decapitated and bound bodies of nine policemen in Juwayba, near the city of Ramadi, capital of Anbar province.
Anbar is regarded as an al-Qaeda stronghold, and US commanders blamed the militant group for chlorine gas bombs that poisoned hundreds in the same province on Friday.
And a car bomb today at a crowded market in a mainly Shia neighbourhood of northern Baghdad killed six people and injured 30. Five bodies were also found in different parts of Baghdad.
