Zackaria led the Imperial Senate's forces in The Battle for Kethlan. His original intention was to capture INF Minotaur, whilst eliminating the remainder of the Emperor's forces. However, when the battleship was destroyed, Zackaria masterminded the theft of CSN Dragon.

Following the fall out of Operation Menelaus, Zackaria met with Anthony Hawke, intending on using CSN Ifrit to trick CSN Griffin into believing that a rescue party had arrived at the Phylent system to assist them. In the battle that ensued Zackaria was spaced from the bridge of CSN Ifrit when Simon Dodds attacked it.

Though he was exposed to the vacuum of space, Zackaria apparently survived the attack and now holds a grudge against Simon Dodds. He was rescued by transport shuttles that departed CSN Ifrit and fled with CSN Dragon and the remainder of the Imperial forces.