"day of fire"

"We haven't had any mortar or rocket attacks here for a week, which is a long time in these parts. Its only happened three times since getting here last February. Word is that the insurgents are planning something they call a "day of fire". Probably the usual business of trying to cause as much damage as they can. A lot of car bombs are supposed to be roaming around the country. Our recent car bomb apparently was perpetrated by two Saudis."
Iraq Calling