More than 6,000 Islamic State fighters have been killed since September, including senior commanders and others in authority.
Allied airstrikes have successfully targeted the terrorist group, leaving the Islamic State leadership decimated and in chaos, reports Daily Mail.
Abu Muslim al-Turkmani, former Iraqi army lieutenant and Islamic State's most senior militant in Iraq was one of the leaders killed in the attacks. He was considered second in command to leader Abu Bakr al-Baghdadi.
In addition to Turkmani, nine others on Islamic State's 18-man leadership council have also been killed. This may have forced Baghdadi to promote local warlords to the status of regional commanders as his inner circle of loyalists has been depleted in recent months.
Some of the other ISIS leadership figures that were killed include: Abu Abdulrahman al-Bilawi, former head of Baghdadi’s four-man military council; Abu Musa al-Alwani, former member of deposed Iraqi leader Saddam Hussein’s army and part of the Islamic State military council; and Abu Hajar Al-Sufi, one of Baghdadi’s most trusted advisers on the Shura Council, a strategic advisory board.
Baghdadi's current status is unclear as he has not been publicly seen since July. Unconfirmed reports claim he suffered a serious injury due to the airstrikes or has been killed, though no announcement will be made until it is confirmed.
Because more than 1,000 of the group's vehicles have also been destroyed in recent months, some believe Baghdadi is deep in hiding to avoid the risk of being spotted by aerial reconnaissance.