First War of the Ishvana
Somewhat confusingly-named to the layman, the First War of the Ishvana is really the second of the Ishvana wars in the modern age, after the Bushraki War, which had been secretly directed by the Ishvana. Regardless, this war, launched in 72 A.E., was fought much as the Bushraki War was, but with even greater numbers of Bushraki and Vendal. After the Bushraki decimated the planet Song in a final assault, the war was essentially over, the Ishvana having failed, again, to find what it sought.
However, the First Empire War began immediately after, as a result of Tamiko Lane Khan's play for power.