The call comes on a Tuesday morning. Taiwan Strait tensions have escalated overnight. Markets are already moving. Your CFO is on one line, your General Counsel on another. By the time you’ve hung up, your head of communications is in the doorway. Most CEOs have planned and prepared for this moment. In my work running a global communications firm, I’ve been part of the war-gaming sessions. But I’d contend that most leaders aren’t ready for it.