Bolo universe

The Bolo universe is a fictional universe based on a series of military science fiction books by author Keith Laumer. It primarily revolves around the eponymous "Bolo", a type of self-aware tank. They first appeared in the short story Combat Unit (1960), and have since been featured in science fiction novels and short story anthologies by him and others.

The story of the books takes place in various times from the near-future (2018, 2068), the mid-range future (27th up to 37th century) and even farther in one case (118th century). The overall plot features mostly military themes and includes space exploration, alien races and some advances in human society.

Many Bolo stories are told from the point of view of the Bolo itself, with its internal thoughts printed in italics throughout the text.

One theme in Bolo works is the portrayal of valiant, tragic, self-sacrificing heroes, such as Bolo "Nike" in the story "Miles to Go" (Weber 1995, in Bolos Book III). Another concept explored by stories such as "Miles to Go" is the use (and abuse) of safeguards to prevent artificial intelligence from hurting its creators.

Their overall programming involves large amounts of human military history, and often they draw conclusions from that information which puts them at odds with their commanders. Sometimes Bolos develop senses of honor and nobility that would bring their actions into conflict with orders given by their human superiors. One of the stories in Rogue Bolo chronicles the actions of Combat Unit CSR, who identifies an alien threat to humanity but is forced to go "rogue" in order to defeat it (possibly for dramatic effect, as it does not appear to be explained why the bolo did not simply inform its commanders of the threat).

Bolos as envisioned by Laumer in his future history military SF are described as autonomous armoured fighting vehicles of immense size. While the early versions are in the range of a few hundred tons, the "Mark XXXIII", a standard model appearing in the series, weighs 32,000 tons:

Weapon systems described as part of early Bolo marks include mostly real-world weaponry; the more futuristic settings of the novels describe them carrying advanced nuclear weapons. The main gun of a Bolo is usually a variant of the Hellbore system which is described in the Bolo story-universe as a long-range deuterium-initiated fusion pulse. Hellbores were meant as weapons for interstellar vessels, and the versions mounted on Bolos were modified to fit.

Secondary weapons cover a wide field of weapon systems, as Bolos were supposed to address most combat situations, including land, sea and air battles, sometimes including space/orbit. While Bolo models generally opted for a "balanced" approach to offensive and defensive capabilities, there were often specialised variations on the base model, such as heavy siege units, scout units and ECM platforms. The additional weaponry thus includes but isn't restricted to: A high-speed auto-cannon which was recurringly referred to as "Infinite Repeaters" (the 'infinite' referring to the fact that the Bolo can create its own ammunition from metals found in the environment, thus not having an ammo count in the true sense of the word), firing systems such as a combination of Gatling guns with mortars similar to the 2S4 Tyulpan; VLS (also for launch of drones etc.); as well as tank guns or railguns similar to secondary armament, which includes additional Hellbores of a smaller caliber. Projectiles include KEP projectiles, DSFSLRP (futuristic APFSDS), other missiles and anti-personnel flechettes. Bolos may carry different types of drones (UAVs, hover-UGVs, even satellites) for maintenance, reconnaissance (sometimes including spy satellites) and providing additional offense.