US troops in the multinational task force fighting IS have transitioned into an advisory role, which officials say has been effective at preventing terrorism.
The US appears to be increasing the tempo of operations against ISIS in Syria with its partners on the ground.
Hypersonic missiles are able fly five times faster than the speed of sound and have complex and varying flight paths, making them hard to intercept.
US Army General Mark Milley's trip comes amid Iranian nuclear advances and spiraling violence in the West Bank.