Kohrah was a male Zentraedi who lived in the 21st century.
He eventually arose to the position of Commander where he was placed in command of the Robotech Masters Elite Guard. This group within the Imperial Zentraedi Forces were tasked with the personal protection of their Tirolian creators. As such, they were equipped with the best weapons and technology at their disposal. This included shields included on their warships and stealth technology being used by their mecha. Kohrah was eventually assigned to the Earth solar system during the First Robotech War.
Following the failure of Breetai, Kohrah was tasked with the important mission of retrieving the SDF-1. Thus, his forces were placed on this new assignment where they intercepted their quarry at Jupiter. His ambush involved the secret deployment of his fleet at Jupiter under the cover of stealth technology where they intended to entrap the SDF-1 by tricking the Humans into falling into a gravity well where they were to be trapped by the tidal forces of the megastorm. This plan was partly put under threat when a Robotech Defense Force scout squadron accidently encountered these deployments.
When the SDF-1 investigated the attack, they became entrapped within the gravity wells being created by the Zentraedi battleship. The battleships shields prevented the SDF-1's main weapon from harming it and thus left the Humans trapped in this ambush. In order to secure victory, Kohrah led a detachment of his warriors in Male Power Armor to destroy their target's anti-gravity units. He was ultimately wounded during his sabotage mission and piloted his mecha on a suicide course for one of the anti-gravity units where he was killed. Despite his plans, the Micronians ultimately succeeded in overcoming Kohrah's trap.