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<p>Note that risk depends on the war situation and the service branch. For example, in 2003-2006 in Iraq, the Marines were the riskiest branch, followed by the Army. But the Navy and Air Force had death rates lower than that of overall US men age 20-34.</p>
<p>[“Mortality</a> of American Troops in Iraq” by Samuel H. Preston and Emily Buzzell](<a href=“http://repository.upenn.edu/psc_working_papers/1/]"Mortality”>http://repository.upenn.edu/psc_working_papers/1/)</p>