Iraq and Casualties

Winds of Change notes that the shortage of suicide bombers in Iraq has led to lower casualties.

Apparently, there are fewer suicide bombers willing to die for the cause,
and fewer fighters available for direct attacks against coalition forces,
prompting a shift to less risky IED attacks, which require fewer
personnel.

The current death toll in Iraq for the U.S. Military including both combat and non-combat is at 1904. While everyone abhors the death toll, it is still far lower than any comparable war as Chris notes below.