"China and Russia are mostly out of the nuclear-bluffing business for now, but America's 44th president today finds himself across the table from some new antagonists. Iran and North Korea have proven themselves no-limit wizards when it comes to the bluff, leveraging the world's uncertainty about what they-re holding and what they might do with it to keep their enemies off balance...
"Iran's use of children as minesweepers during the Iran-Iraq War, for example, advertised that Iran would defend itself by any means necessary. The late, great poker player Stu Ungar dominated no-limit hold 'em tournaments with aggressive, flashy bets. When his opponents got tired of his bullying and decided to take a stand, he often was able to bust them by showing them a monster he'd been slowplaying."
—James McManus, "Playing With a Full Deck: Lessons about nuclear deterence from the poker table," Foreign Policy, September/October 2009, p. 26.