US-led troops in Iraq are to undergo ethical training in the wake of the alleged murder of civilians in Haditha.
For the next 30 days, they will receive lessons in "core warrior values", a military statement said.
Correspondents say Haditha, where US marines are suspected of massacring up to 24 Iraqi civilians, could have a huge effect on US public opinion.
In a separate incident, US forces were accused of shooting dead a pregnant woman as she was rushed to hospital.
http://news.bbc.co.uk/1/hi/world/americas/5036686.stm