The US uses extraordinary rendition to take persons suspected of ISIAS links to Guatanomo Bay and waterboards them. Your problem will arise when they regain their freedom and seek revenge instead of Jihad.
According to the Office of the Director of National Intelligence, as of January 2017, 714 detainees have been transferred from Guantanamo Bay. Of these, 16.9% are listed by them as confirmed of returning to terrorist or militant activities, while 12.2% are suspected by them of the same. The Defense Intelligence Agency maintains that slightly more have reengaged. A small percentage are US citizens.

In Afghanistan alone As of July 27, 2018, there have been 2,372 U.S. military deaths in the War. 1,856 of these deaths have been the result of hostile action. 20,320 American service members have also been wounded in action during the war. In addition, there were 1,720 U.S. civilian contractor fatalities.
To this have to be added casualties in Iraq, Syria and sundry other middle eastern countries being subjected to the "War on Terror"

The above reality check in the previous post seems blind to the harsh reality that a death is a death no matter on whose soil it occurs (and we had best not talk about civilian casualties.)


https://www.npr.org/2019/02/21/696769808/what-happens-when-americans-who-joined-isis-want-to-come-home?t=1551028628602