The Iranian empire is crumbling. Just three months ago, Iran sat astride the Middle East, effectively controlling at least four Arab capitals and multiple well-armed proxy forces. Now, it has lost Syria and Lebanon while Hamas and Hezbollah have been…

President-elect Donald J. Trump will encounter an Iran that is suddenly far more brittle than it was during his first administration, its leadership more uncertain, its nuclear program more exposed and vulnerable to attack. That new reality has touched off…

Amid negotiations to forge a hostages-for-cease-fire deal between Israel and Hamas in Gaza, and as the truce with Hezbollah in Lebanon mostly holds, Jerusalem has an opportunity to direct additional military resources to cut Yemen’s Houthi leadership down to size,…