Interesting point but who do we demand unconditional surrender from? What government body or individual?
Islam.
Deliver the demand to all major Islamic leaders....Sunni, Shia, Our Lady of Beheadment...whatever, and say that either it stops or Mecca, Medina, et al....are toast. Same with nuclear detonation on US soil.....it happens, the city/shrines are gone. No questions asked.