Private security companies (i.e. mercenaries), have played a major role in the Iraq war. An article in the Washington Post yesterday describes their widening involvement and the resulting increase in under-reported or un-reported casualties.
From the Washington Post
From the Washington Post
BAGHDAD -- Private security companies, funded by billions of dollars in U.S. military and State Department contracts, are fighting insurgents on a widening scale in Iraq, enduring daily attacks, returning fire and taking hundreds of casualties that have been underreported and sometimes concealed, according to U.S. and Iraqi officials and company representatives.A partial list of contractor casualties is maintained here by Coalition casualty Count.