The Pentagon is stating that B-2 Spirit stealth bombers, along with other U.S. forces, conducted a strike on Houthi underground weapon storage sites in Yemen. It sends a very specific and powerful message that only the B-2 can to the Houthis’ benefactor, Iran. As to why the B-2 was used against the Houthis, who have only rudimentary air defenses, we will address that in a moment, but it was by design a very ominous and potentially historic act that might have featured the first use of an incredibly rare weapon.