One of London's most famous churches, St James' Piccadilly, in the heart of the West End, is hosting an eclectic musical concert and poetry evening for the Stop the War Coalition - which opposes the British government's policy on Iraq.
Police arrested four people during the Stop the War Campaign march calling from the withdrawal of troops from Iraq, - after the protest was given the go-ahead by the authorities following outrage at its original banning under an archaic law.
Protesters calling for the withdrawal of British and Western troops from Iraq say they will attempt to defy a ban by police and the UK government which is set to prevent them from entering Parliament Square today, under obscure legislation from 1839.
Peace and civil liberties campaigners have welcomed a legal victory by a group of UK anti-war demonstrators who have established that their rights to public protest were violated when police stopped them from attending a non-violent action against the Iraq war at an airbase.