Michael O'Hanlon et al present their quarterly review of progress in Iraq in the Times. Here is their chart, which has been scaled back from past efforts while expanded to include Afghanistan and Pakistan:
All the arrows are up in Iraq.
The figures above show casualties for November; in December, there were no combat-related deaths among US troops:
Baghdad, Iraq (CNN) -- December was the first month since the beginning of the Iraq war in which there were no U.S. combat deaths, the U.S. military reported.
There were three noncombat fatalities.
Monthly casualties are at Global Security.