- Mark Hertling says US faces crises daily, and Trump should expect more of the same
- Hertling: National Security Strategy being readied to show how Trump will meet a crisis
Retired Lt. Gen. Mark Hertling is a national security, intelligence and terrorism analyst for CNN. He served for 37 years in the Army, including three years in combat, and retired as commanding general of US Army Europe and the 7th Army. He is the author of "Growing Physician Leaders." The opinions expressed in this commentary are solely his.