After this, Zeb and Sety decide not to help Zezenan anymore and leave the
field, while the Guest commander calls in more reinforcements, confident they
will make him the ruler of the universe.
Since standing on a base yields Zezenan a 20% HP recover, try to destroy
the Baran Schnile in a single turn, throwing everything you have on a massive
attack. Once you do so, any remaining enemies leave - read Epilogue 2.