Despite years of defeat claims, ISIS adapts and persists in Syria's chaos, prompting major U.S. military response and raising containment questions.

The United States' latest coordinated strikes against ISIS targets comes as Washington signals sustained pressure on the terror group.

John Michael Garza Jr. was charged last week by federal complaint with attempting to provide material support or resources to a designated foreign terrorist organization.

Roughly two dozen ISIS operatives have been killed or captured in Syria by US and partner forces since US airstrikes earlier this month, which were carried out in response to the killing of two American service members.

Texas man John Michael Garza Jr., 21, was charged with attempting to provide material support to ISIS after allegedly paying cryptocurrency to undercover agent.

The US has ramped up its operations against ISIS after a deadly ambush killed two American soldiers and a civilian earlier this month.

Turkish police detained more than 300 suspected Isis members on Tuesday, a day after a shootout south of Istanbul left three police officers and six militants dead.