Allegations that Britain complied in the use of chemical weapons linked to an upsurge in child deformity cases in Iraq are being investigated by the Ministry of Defence.
The case raises serious questions about the UK's role in the US-led offensive against the City of Fallujah in the autumn of 2004 where hundreds of Iraqis died. After the battle, in which it is alleged that illegal weaponry was used, evidence has emerged of large numbers of children being born with severe birth defects.
Iraqi families who believe their children's deformities are caused by the deployment of the weapons have now begun legal proceedings against the UK Government. They accuse the UK Government of breaching international law, war crimes and failing to intervene to prevent a war crime.
Lawyers for the Iraqis have sent a letter before action to the MoD asking the Government to disclose what it knows about the Army's role in the offensive, the presence of prohibited weapons and the legal advice given to the then Prime Minister, Tony Blair.
Legal actions against America are blocked by US federal immunity laws.