U.S.-Led Yemen Strikes Highlight Risk of Broader Middle East Conflict

Yemen’s Houthi rebels responded defiantly to U.S.-led strikes against them Friday, saying that the attacks had failed to cause significant damage and that they remained undeterred from launching more attacks on U.S. and international targets in the region.

The strikes—and fresh promises of retaliation—are the latest signs that conflict stemming from the Israel-Hamas war in Gaza is widening across the Middle East, with the Red Sea as a new flashpoint between Washington and the various Iran-backed groups arrayed across the region.