Ms. Chao, whose sister Elaine Chao was President Trump’s secretary of transportation, led Foremost Group, operator of a global fleet of carrier ships. She died in a car crash.
The strikes damaged the group’s ability to carry out complex missile and drone attacks, U.S. officials said, but identifying targets has proved to be a challenge.
Two straight days of attacks have hit military targets in response to rising attacks on Red Sea shipping, which the Houthis linked to the war between Israel and Hamas.
American officials and their allies warned that there would be consequences for the Houthis, the Iranian-backed armed group that has disrupted shipping in the Red Sea.