- David Andelman: Trump has named Gen H.R.McMaster as National Security Advisor; who will steer President's response on ISIS
- He says America's allies are petrified that Trump's actions on ISIS will ignore potential outcomes as he makes good on campaign promise
David A. Andelman, editor emeritus of World Policy Journal and member of the board of contributors of USA Today, is the author of A Shattered Peace: Versailles 1919 and the Price We Pay Today. Follow him on Twitter @DavidAndelman. The views expressed in this commentary are his own.
(CNN)There is a great, potentially existential, danger lurking deep within the next critical decision President Trump will have to make -- the one he has said would define his presidency: how to do away with ISIS.