From Keith Laumer's novels, Bolos are AI-controlled superheavy tanks created to be the ulti9mate defenders of humanity. Noticed we haven't had any sci-fi tank pics in a while so I decided to show you guys this. Credit for this render goes to Bluepencil of Spacebattles.com I know the technical stuff for the Mark XXXIII pretty well, so here's a challenge: see if you can find any problem with the design that the books don't present a counter to.