Venomian Army
The Venomian Army was the army of the planet Venom which operated under the control of Andross. The army was destroyed by both the Cornerian Army and the Star Fox Team at the end of the Lylat Wars, although small groups of it remained at least up to the time of the Aparoid invasion. These groups were kept at bay during those times, been holed up with their last resort on Fortuna before the Aparoid's invaded.
The Venomian army was a disciplined and ruthless force that nearly succeeded in conquering the Lylat System. The invasion of a planet by Venom forces was a planned operation broken down into three stages. The first stage was for Venomian forces to gain air superiority over the enemy, either through overwhelming numbers, superior technology, or both. The fact that the underdeveloped Cornerian Army didn't suspected an attack helped in their goal immensely. The initial wave of starfighters would draw air defense units into meeting them head on, allowing a second wave of fighters to come in and overwhelm the preoccupied defenders. With the skies clear of enemies, the second stage began as bombardment craft proceeded to rain destruction on the now-defenseless ground units. With most ground forces destroyed, the final stage began as shock troops were dropped to round up and enslave any survivors.
The invasion of Katina by the Venomian Army served as a textbook example of the above tactics, at least until the Star Fox team succeeded in disrupting their plans and destroying their invasion force.
References
NINTENDO POWER Starfox 64: Official Nintendo Player's Guide. Redmond, WA, Nintendo of America. 1997.