4000.

The story speaks for itself:

BAGHDAD (MSNBC, 10:30 EDT) March 23 - Four U.S. soldiers were killed by a roadside bomb in southern Baghdad late Sunday, raising the death toll for American forces since start of the war to 4,000, according to the Pentagon.

The grim milestone was reached less than a week after the fifth anniversary of the U.S. invasion to topple former Iraqi dictator Saddam Hussein and coincided with a spate of violence across Iraq on Sunday that left at least 61 people dead.

The attacks included rockets and mortars fired at Baghdad's U.S.-protected Green Zone and a suicide car bomb detonated at an Iraqi army post in the northern city of Mosul.

The latest violence underscored the fragile security situation and the resilience of both Sunni and Shiite extremist groups as the war enters its sixth year.

The attacks in Baghdad probably stemmed from rising tensions between rival Shiite groups — some of whom may have been behind the Green Zone blasts. It was the most sustained assault in months against the nerve center of the U.S. mission.

Late Sunday, four U.S. troops were killed and another injured after being attacked with an improvised explosive device while conducting a vehicular patrol in Baghdad, the military said.

The military said the soldiers were from Multi-National Division but gives no other details about their identities.

The deadliest attack of the day was in Mosul when a suicide driver slammed his vehicle through a security checkpoint in a hail of gunfire and detonated his explosives in front of an Iraqi headquarters building, killing 13 Iraqi soldiers and injuring 42 other people, police said.

Iraqi guards opened fire on the vehicle but couldn't stop it because the windshield had been bulletproofed, said an Iraqi army officer. He spoke on condition of anonymity because he was not supposed to release the information.

Mosul, Iraq's third largest city about 225 miles northwest of Baghdad, has been described as the last major urban area where the Sunni extremist al-Qaida group maintains a significant presence....

The rest is here.

Now pardon me, as I must stick my head out of the window so as to begin screaming BLOODY MURDER!