Erokene Yaelon was a male Tezwan elininae military general. After Prime Minister Kinchawn went into exile, Yaelon followed as well, where he directed terrorist forces in Arbosa-Lo. (TNG novel: A Time to Kill)
After a period of leading attacks, General Yaelon realized Kinchawn's actions were a convenient excuse to commit ethnic genocide against trinae settlements and had a change of heart regarding their insurgency actions. He secretly provided captured USS Enterprise-E first officer Commander William Riker with technology to aid him, then later helped him escape captivity by killing several of his own men and sacrificing himself to buy the Starfleet officer time to reach safety. (TNG novel: A Time to Heal)