Between February and September 1988, 100,000 to 180,000 Kurds died or disappeared. The bombing of the Kurdish village of Halabja with chemical weapons including mustard gas, tabun, sarin and VX on March 16, 1988, which killed 3000 to 5000 civilians, was the most publicised of these atrocities because it occurred near the Iranian border and Iranian troops were able to penetrate with the assistance of Kurds, filming and photographing the victims.

Halabja was not an isolated case however. Saddam used chemical weapons at least 60 times against Kurdish villages during Anfal.
This is bad too...

:smokin: