Elbridge "Bridge" Colby is the former Deputy Assistant Secretary of Defense for Strategy and Force Development who, in 2017 and early 2018 was the co-lead on the development of the National Defense Strategy which is as important as it sounds.
His recent book, just out this month in paperback, is “The Strategy of Denial: American defense in an age of great power conflict” (see link below)
We're going to have what I expect will be an intense conversation about US national security interests, and most of the conversation will be about China
Elbridge A. Colby > U.S. Department of Defense > Biography