The life expectancy of a known jihadi fighting the U.S. and its allies is not very long. If they aren't killed as Iraqis retake towns and cities, then they are likely to be killed or captured in night raids conducted by special forces or in a drone strike.
ISIS leaders are in the crosshairs more than any other bad guy group these days. Here's a list of leaders that coalition attacks have helped shuffle off this mortal coil:
1. Fadhil Ahmad al-Hayali (aka "Haji al-Mutazz," aka Ned Price)
This righthand man to ISIS leader Abu Bakr al-Baghdadi was killed in August 2015. The IS deputy was the top weapons procurer and logistician for the terror group. His death sparked off a number of internal reprisals against those the terror group suspected of leaking important information to Western intelligence.
2. Omar al-Shishani (aka "Omar the Chechen")
Of all the ISIS leaders killed in action, he's the most ISIS. He was widely considered to be the terror group's minister of war. He was killed as a result of an American airstrike in March 2016, near the Syrian border city of Shadadi. He survived the initial strike, but later died of his wounds. It's not known why they called him "the Chechen," because he is from Georgia.
Shishani also headed the terror group's main prison in Raqqa, Syria. The U.S. State Department once offered $5 million for information leading to the capture of Shishani. Shishani was also called "Abu Meat" by detractors, because he had a reputation of staying in the rear with the gear while ordering others into battle.
3. Abd al-Rahman Mustafa al-Qaduli (aka "Hajji Imam")
In a March effort to capture this senior IS commander, U.S. special operators originally planned to disable his vehicle from the air, land a helicopter, and then take him into custody. Instead, they lit up the vehicle, killing al-Qaduli. He was the group's top financier.
4. Fathi ben Awn ben Jildi Murad al-Tunisi (aka "Abu Sayyaf")
British SAS and American Delta Force elements raided the house of Abu Sayyaf, ISIS' chief oil minister and a high-ranking commander in Deir-ez-Zor, Syria. Abu Sayyaf was shot twice in the chest as he went for a weapon. His wife, called Umm Sayyaf by the Daily Mail, claimed to be a Yazidi sex slave. (Sayyaf and his wife ran ISIS' sex slave network.) His actual Yazidi sex slave was freed by the operators. His wife was captured.
5. Tariq al-Harzi
Also known as the "Emir of Suicide Bombers" he was killed in June 2015 by coalition airstrikes in Syria. He was another logistics expert for ISIS, managing the movement of men and materiel between Iraq and Syria and the support and recruiting for ISIS operations in North Africa.
6. Junaid Hussein
A British citizen, Hussein was the critical operative in the Garland, Texas cartoon contest attack in 2015 and an effective ISIS recruiter. He was killed in Raqqa, Syria by a coalition airstrike. Raqqa is supposed to be a safe haven for the fighters. He was hit by a missile fired from a drone. Hussein was central to the plot of attacking the homes of U.S. service members after ISIS hackers posted their home addresses.
7. "Abu Maryam"
Called an ISIS enforcer and senior leader of their extortion network, Maryam was killed in a December 2015 airstrike. Since extortion is one of the top ways ISIS raises money, the death of Maryam was likely a blow to that revenue stream. He was killed in an air strike near the Iraqi city of Tal Afar.
8. Muwaffaq Mustafa Mohammed al-Karmoush (aka "Abu Salah")
As part of the apparent effort to disrupt the group's fundraising and ability to use those funds, the U.S. also hit ISIS' chief accountant. Abu Sarah (Abu is not his real first name. "Abu" means "father of" in Arabic, and is often used as a nickname) was responsible for paying fighters' salaries in Northern Iraq, where they are fighting a mixture of Kurdish Peshmerga, Iraqi Army, and Shia militias backed by Iranian Quds Force operators.
9. Wissam Najm Abd Zayd al-Zubaydi (aka "Abu Nabil")
Abu Nabil was killed in an F-15 strike in the Libyan coastal city of Derna. He was an Iraqi who one fought for al-Qaeda but turned to spearheading ISIS operations in Libya. He was the first ISIS leader killed by Western strikes in Libya. His December 2015 death hampered the terror group's ability to recruit and establish bases in Libya.
10. Sleiman Daoud al-Afari
Afari is unique on this list because he was the only one captured, interrogated, and handed over to the Iraqi government, instead of being outright killed. Afari was ISIS chief chemical weapons engineers. He learned the trade under the regime of Saddam Hussein in Iraq. He told officials about ISIS efforts to develop everything from mustard gas to Sarin nerve gas.
11. Mohammed Emwazi (aka "Jihadi John")
Emwazi was a significant ISIS operative because of his command of English led him to be the voice of the terror group's propaganda efforts. Jihadi John was killed in a drone strike in Raqqa, Syria. Starting in August 2014, he appeared in ISIS beheading videos and was a celebrity in the group. He played no important spiritual or military role.
12. Abu Rahman al-Tunisi
An IS executive officer who coordinated the movement of arms, money, people, and information. Hitting al-Tunisi likely significantly disrupted ISIS' command and control capabilities.
13. Charaffe al-Mouadan
Central to the ISIS attacks in Paris in November 2015, Moudan was killed in an airstrike in Syria the following December.
14. Fayez al-Shaalaan (aka "Abu Fawz")
Shaalaan was the ISIS leader in the Arsal region of Syria, near neighboring Lebanon. In the northern areas of Lebanon, fighting between ISIS and the al-Qaeda allied Nusra Front fighter spills into Lebanese territory. The Lebanese Army routinely engages these fighters.
BONUS: Abu Bakr al-Baghdadi (maybe)
The "Caliph" of ISIS, the overall leader of the terror group was the target of an Iraqi airstrike. It's unknown whether or not Baghdadi was killed in the October 2015 strike. (CNN reported the leader was taken away in a vehicle to an unknown location.)