Phoenix Force first learned of TRIO when it was investigating the aforementioned attack on the Coast Guard officers off California. It was during this mission that Calvin James got Phoenix Force in touch with John Trent, his old friend from his days in the SFPD. To help Phoenix Force, Trent turned to his uncle, Inoshiro Nakezuri, who had by this time become part of another Yakuza clan, the Kaiju Clan. The information Nakezuri gave to his nephew was of great value to Phoenix Force.