A declaration opposing military action against Iraq signed by about 2,500 Christians in Britain was presented to the prime minister's office Tuesday.
The next Archbishop of Canterbury, Rowan Williams, was one of the signatories. The new leader of the Church of England criticized any invasion of Iraq.
Drawn up by the Christian peace group Pax Christi, the declaration called any attack on Iraq "immoral and illegal".
"We deplore any military action that regards the deaths of innocent men, women and children as a price worth paying in fighting terrorists, since this is to fight terror with terror," it stated.
The protest was the latest in a rising tide of criticism as speculation mounts that the United States is planning to strike Iraq and that Britain is likely to support the strike.
The signatories called upon the world's leaders to seek "a justand peaceful solution to the problem of terrorism".
"The so-called 'war on terrorism' is an act of political rhetoric that must be distinguished from a military campaign against a sovereign state," the declaration said. "There can be no justification for war by another state unless and until the Iraqi government itself launches an attack."
"It's deplorable that the world's most powerful nations continueto regard war, and the threat of war, as an acceptable instrument of foreign policy," it added.