Total military casualties under Clinton's first term from Jan 1993 to Dec 1996 inclusive, vs. Bush's first term from Jan 2001 to Dec 2004 (which includes the Iraq war) is interesting. Those numbers are Clinton's 4302 dead during peacetime vs. Bushe's [sic] 5187 dead during war.
In fact more people died under Clinton due to accidents, 2241, than died under Bush due to hostile action, 1102, during those periods.
These are incredible numbers. If instead of going to war with Iraq in response to 9/11 we had merely doubled the size of our army and stayed home, then we would have suffered about twice the number of military deaths. Yes, the increased amount would have been double. Instead of going from around 4000 to 5000, the result would have been from around 4000 to 6000.
I've noted before that mortality rates seem quite low; here's the evidence.