Mark Esper confirms reports Osama bin Laden's 15th son and heir as head of jihadist group was killed in the past two years in US-aided operation

US secretary of state says jihadist group stronger today than 3-4 years ago in some areas, but loss of territory has hampered their ability to carry out attacks

As Washington and the Taliban finalize deal to reduce US military presence, there is concern over the growing threat by local affiliate of jihadist group

Researchers believe jihadist group will continue working to fill vacuum left by collapsing Islamic State despite reported killing of terrorist leader's son

Assessment given to Security Council says leaders of jihadist group consolidating power, setting up local sleeper cells for 'eventual' comeback

Prosecutors say Bosnian national suspected of connection to November 2015 terror attack that killed 130 in French capital

Gunmen on motorcycles open fire on police, then bomber hits hospital where the wounded were brought; 30 hurt, many in critical condition

Isaak el Matari had previously been enrolled in a government deradicalization program

Security service says 20-year-old was spreading jihadist propaganda and plotting to bomb local Christian, Shiite sites

14 people are accused of providing the three Jihadist gunmen, who were killed by Paris police, logistical support and weapons; trial to begin next year