American casualties from bomb attacks in Iraq have reached new heights in the last two months as insurgents have begun to deploy devices that leave armored vehicles increasingly vulnerable, according to military records.
Last month there were about 700 attacks against American forces using so-called improvised explosive devices, or I.E.D.'s, the highest number since the invasion of Iraq in 2003, according to the American military command in Iraq and a senior Pentagon military official. Attacks on Iraqis also reached unprecedented levels, Lt. Gen. John Vines, a senior American ground commander in Iraq, told reporters on Tuesday.
The surge in attacks, the officials say, has coincided with the appearance of significant advancements in bomb design, including the use of "shaped" charges that concentrate the blast and give it a better chance of penetrating armored vehicles, causing higher casualties.
Another change, a senior military officer said, has been the detonation of explosives by infrared lasers, an innovation aimed at bypassing electronic jammers used to block radio-wave detonators.
Infrared!
This is not getting any easier, is it?
