The Imperial Zentraedi Forces, otherwise known as the Zentraedi Fleet, was a military division within the Tirolian Empire which consisted of their cloned Zentraedi warriors. They were involved with the search for Zor's battlefortress and participated in the First Robotech War against the United Earth Government where the Imperial Zentraedi Forces were defeated. Many surviving Zentraedi were micronized and folded into the Earth military forces, becoming part of the Robotech Expeditionary Force under General Breetai.