Suicide bombings at a police training academy in Baghdad and in Mosul recalled presurge levels of violence.

American commanders are increasingly concerned that Mosul could degenerate into a larger battleground over the fragile Iraqi state itself.

Several church leaders accused the Iraqi government of trying to cover up the problems facing Christians and of overstating its success in improving security in Mosul.

Two suicide bombers struck Mosul on Sunday, killing at least five Iraqis and wounding dozens more, as Iraq’s leaders rallied behind the city’s Christian minority.

At least 11 and perhaps as many as 14 Christians have been killed in the northern Iraqi city since the end of August, according to government officials.

At least 11 and perhaps as many as 14 Christians have been killed in Mosul since the end of August, according to government officials and humanitarian groups.

The Americans said the insurgent they were pursuing in the raid detonated his vest and his companions opened fire. Eleven people were killed in the incident.

The Americans said that after they entered the house in pursuit of a known insurgent, his companions opened fire and the insurgent detonated his vest.

Eight Iraqis were killed in a suicide attack against Iraq?s top military commander in the northern city of Mosul. The commander escaped unharmed.

Protection money paid to insurgents became a secret complication of live for Iraq?s Christian population.