Anfal 4 took place between 3–8 May 1988 in the valley of the Little Zab, which forms the border of the provinces of Erbil and Kirkuk. The morale of the Iraqi army was on the rise due to the capture of the Faw Peninsula on the 17–18 April 1988 from Iran in the Iran–Iraq war. Major poisonous gas attacks were perpetrated in Askar and Goktapa. Again it was announced an amnesty was issued, which turned out to be false. Many of the ones who surrendered were arrested. Men were separated from the women.