as the Human military forces attempt to reverse-engineer Kzinti gravity technology. They also attempt to locate and form an anti-Kzin alliance with the Pierin aliens (although according to the Ringworld RPG, the Pierin may already be enslaved at this point). A troika of unconventional officers – Belter General Lucas Fry, flatlander Major Yankee Clandeboye, and Wunderlander Admiral Blumenhandler – established a semi-covert training center on Barnard's Starbase. There the troika develops plans for fighting the hyperdrive-equipped Kzinti in a coming second war. The new plans are needed since the (mostly successful) human tactics in the first were restricted by their own ignorance, and by the ARM's structure: The only successful other planetary assaults the liberation of Wunderland, only two, on Down and Hssin. The group devises two ways to help prepare the rest of the human military: A war game called Trolls and Bridges, and a book, The Heroic Myth of Lieutenant Nora Argamentine. Written by Clandeboye, they are a fictionalized account of the diary of his cousin, Nora Argamentine. She was a U.N. officer caught by Kzinti, who later rebelled against them before being gradually lobotomized. The book becomes extremely popular and helps raise morale, as well as cultivating the belief that the Kzin will attack again. Second Man-Kzin War All information on the second war comes from the Ringworld RPG guidebook. It begins in 2449 when the Kzinti launch "diversionary raids" on Sigma Draconis and Barnard's Star (which can probably be retconned to be due to Barnard's Starbase from The Heroic Myth of Lieutenant Nora Argamentine) and ends in 2475 with the liberation of the Kdatlyno from Kzin rule. Third Man-Kzin War The Third War is mentioned in the Ringworld RPG and The Ringworld Engineers. According to the Known Space novel Juggler of Worlds, it started in 2490. At the end of the war, the Wunderland Treatymaker weapon is used on the Kzinti fortress-world of Warhead, creating a huge, habitable canyon on the otherwise Mars-like world. Warhead is annexed by the humans and renamed Canyon. This war is chronicled in considerable detail in the novel Destiny's Forge. Fourth Man-Kzin War The war begins on an unknown date, with Kzinti suicide attacks on Epsilon Eridani. During the war, human adventurers engage in similar suicide attacks on Kzinti harems. The war ends in 2505 with the signing of the Covenants of Shasht, named after a Kzinti world which is annexed