In that year, Watanabe was one of the Maquis envoys who traveled to the Cardassian space station Tral Kliban and attempted to negotiate Maquis neutrality in the Dominion War. Following the failure of negotiations, Watanabe and his fellow envoys were ordered to evacuate the Maquis colony on Galion. Watanabe himself was evacuated to the former Bajoran transport, Orb of Peace, alongside many other high-ranking Maquis who were to be taken to Bajor.
When Ro Laren was appointed as commanding officer and she demanded complete control of the mission, Watanabe stated that the officials wanted some input, although Ro's threat to beam back to Galion led Watanabe to withdraw his terms. (TNG - The Dominion War novel: Behind Enemy Lines)