The Islamic State today welcomed the killing of Iranian general Qasem Soleimani, who distinguished himself by advising the forces fighting the extremists.
On their website today, they pointed out that his death "satisfied the hearts of believers".
Although the US and Iran have strictly avoided acting together, they were once on the same side in the fight against the Islamic State.
As commander of the elite Quds Force of Iran's Revolutionary Guards, Soleimani was one of the main commanders on the ground leading the fight against the Islamic State.
In the bombing of American forces last Friday in Iraq, Iranian general Qassem Soleimani and the high-ranking Iraqi commander of the paramilitary group Abu Mahdi al-Muhandis were killed.
The Islamic State stated that its members had been trying to kill them for years, but that "God made them die at the hands of their allies", and that both had gone too far "in shedding the blood of Muslims in Iraq and Syria".
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