In the early 1990s, the Republic of Wainan Army desperately needed a modern MBT, given its limited number of Alviet T-72, or the MBT-3, in Wainanese service. The threat of a Sijiangese invasion of the Wainanese islands in 1991 kicked off the domestic MBT project, Project Catnan. CWIM took up the contract and contacted the Naidunese company Meowstibishi for assistance regarding the Catnan project, as they had significant experience in the field. By 1994, the CM-33C1 was finalized and put into production. Concerns with the targeting system, autoloader, chassis, and transmission lead CWIM to develop the C2 model, allowing for greater accuracy, rounds on target, and mobility. In 2009, the 105mm round was far outdated for a MBT role. This led CWIM to contact Meowstibishi to develop the C3 model, which revamped the gun, fire control, suspension, computing, armor, and others. In 2013, following the rejection of the export of the Naidunese K11, CWIM sought to develop a competitor to other modern tanks at the time. The Wainanese MOD denied the request to develop a entirely new platform, due to lackluster funds allocated to defense by Wainan. This lead CWIM in 2015 to develop to CM-33C4, or CM-34 tank, which completely overhauled the major components of the tank.
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