With boundless love and appreciation to my
entire family (my wife Andrea and living children
Connor, Kyle, Alexandra, and Pierce), whose
patience was matched only by their willingness
to have me absent for so much of their lives
during the completion of this book.
And in memory of I. F. Clarke, whose friendship,
scholarship, and raucous, cackling laugh are
always with me as reminders and inspirations as
I apply his beloved concept of “future-think”
to exploring the shape of warfare in the
decades and centuries to come.