Sunak joins Biden coalition against Yemen rebels, recalling past UK-US bonds
• Sunak quotes George Bush Sr. when deciding to send forces against Houthi rebels • Sunak eager to build coalition with Biden admin to deter Houthis • Britain quick to volunteer forces for Biden's anti-Houthi coalition • Downing Street-White House relations not always warm • Sunak has a reputation for indecisiveness, but took decisive action with Biden coalition