Cyber-Army
Cyber-Armies were the army of the Cybermen.
Hierarchy
Standing at the very top of the rigid Cyberman hierarchy, the Cyber-Controller oversaw Senior Leaders who commanded Major Phalanxes including Leaders, Junior Leaders and the Cyber-Army. (PROSE: Attack of the Cybermen)
History
In Pete's World, 2007, John Lumic led an army of Cybermen in an attempt to upgrade London. Though the army was destroyed by the Tenth Doctor more Cybermen produced by Cybus Industries existed across the world. (TV: The Age of Steel)
By 2010 in Pete's World, an army of five million Cybermen crossed over to N-Space Earth in 2007, taking the form of ghosts. An advance guard, led by Cyber-Leader One, seized the controls for the ghost shift at Torchwood Tower, allowing all five million Cybermen to fully materialise across the planet. In the resulting Battle of Canary Wharf, the army sustained losses, including two successive Cyber-Leaders at the hands of human forces from both universes as well as the Daleks. Later that day, the army was banished into the Void along with millions of Daleks by the Doctor. (TV: Army of Ghosts/Doomsday) A small number of Cybermen produced in N-Space remained and attempted to retrieve the army, but were thwarted by the Doctor. (PROSE: Made of Steel) Ultimately, the vast majority of the army within the Void was destroyed by the reality bomb. A small group fell through time back to London in 1851, but was intercepted and destroyed by the Doctor. (TV: The Next Doctor)
Following their defeat in the Great Cyber War, a Cyber-Leader led a Cyber-ship which, as it claimed, had enough parts to build an entirely new and invincible Cyber-Army, which was intended for a second campaign following the destruction of Voga. Ultimately, however, Voga was saved and the Cyber-ship was destroyed before the army could be created. (TV: Revenge of the Cybermen)
After another Cyber-War in the far future led to the fall of the Cyber-Empire, as well as the near-extinction of all humans in the galaxy, the human Ashad became the Lone Cyberman, and sought to recover the Cyberium from 1816, where it had been sent by the Alliance. (TV: Ascension of the Cybermen, The Timeless Children) He successfully brought it back to his time in order to rebuild the Cyber-Army and the Cyber-Empire. (TV: The Haunting of Villa Diodati) Using the Cyberium, he located a Cybercarrier containing an army of hundreds of thousands of Cyber-Warriors. However, his plot was ultimately foiled when the Spy Master killed Ashad to get the Cyberium for himself. The Cybercarrier was destroyed by Ko Sharmus, Ethan, Rovia and Yedlarmi using explosives planted throughout the ship, taking out the Cyber-Army onboard while most of it was still dormant. (TV: Ascension of the Cybermen, The Timeless Children)