To answer my opening question: Turkish bellicosity results primarily from one man's ambition and ego.

CENTERFORSECURITYPOLICY: Erdogan and Assad at War

The bellicosity in this crisis is coming almost entirely from Tehran.

WSJ: Frederick Kagan and Maseh Zarif: America's Iranian Self-Deception

Does this public bellicosity really make military action more likely?

ECONOMIST: Be very afraid, please

Because Winchell's fearless bellicosity had propelled all of our neighbors outdoors as well, what had begun for us as a cheerful little evening stroll ended as an impromptu block party for everyone.

NPR: Roth Rewrites History with a 'Plot Against America'

Unlike earlier bellicosity, today's rhetoric lacks calibration.

ECONOMIST: Banyan

But two factors could temper this bellicosity.

ECONOMIST: The war laps at Sri Lanka's prosperous south