"At the time, Saddam was a tacit ally of the West, fighting a
gruesomely bloody conflict against neighboring Iran, in an earlier version of
the lethal Sunni-Shiite split which has now made Syria its central battleground.
Saddam initially denied responsibility for Halabja, although it later emerged
that his cousin Ali Hassan al-Majid—or, as his enemies knew him, "Chemical
Ali"—had carried it out, just as he had many other chemical attacks in the war
from 1980 to 1988, in which as many as a million Iranians and Iraqis died. The
reaction of the Reagan Administration, which had been providing Saddam's
military with information of the Iranian troop concentrations from AWACS
surveillance in order to assist his missile-targeting against them, was
initially to side with Saddam by suggesting that Iran had also used chemical
weapons in the fighting. It was a shameful attempt at disinformation."