IEDs account for 66 percent of soldier fatalities in Iraq.

The AP reports that the daily number of IED attacks has increased six-fold since 2003. On one day in May, 101 of the 139 anti-U.S. attacks involved IEDs. IEDs now account for a vast majority of soldier casualties:

In the May-July period this year, the number of U.S. military deaths from IEDs soared to 203, accounting for 66 percent of all U.S. fatalities, according to the authoritative Web site icasualties.org, which tracks military casualties in Iraq.

Those numbers have climbed steadily from the same three-month period in 2004, when 54 Americans were killed by IEDs, 31 percent of total fatalities.

The Pentagon is spending $13 billion on the Joint Improvised Explosive Device Defeat Organization (JIEDDO) in an attempt to “defeat” IEDs.