Apocalypse Meow is a three volume manga series written and illustrated by Motofumi Kobayashi. It was originally published in Japan under the title, Cat Shit One (キャットシットワン, Kyatto Shitto Wan) in 1998 by Softbank Publishing. It was published in the UK (printed in Canada) in 2004 by ADV Manga. It was also released in Poland in 2006, also under the title Cat Shit One. It has been released in France, Belgium and Spain, as Cat Shit One, by Glénat in 2006.
In 2008 Kobayashi released a follow-up to Cat Shit One – Cat Shit One 80. Currently four volumes have been published in Japan.
A computer-generated original net animation series of Cat Shit One by Studio Anima began release on IDA Entertainment's YouTube channel in Japan from July 17, 2010, and in North America, Australia and New Zealand on February 5, 2011.
The manga follows three American soldiers (who are anthropomorphic animals) in the Vietnam War named Botasky, Perky and Rats. All three are in the recon team called "Cat Shit One". Each mission (or chapter) shows the daily activities of the reconnaissance group in Vietnam. There are sections of the manga which give brief history and truths behind the war, such as the types of weapons used by different countries and the activities of forces in the war. At the end of volume one there is a chapter called "Dog Shit One"—separate from the main story—showing human characters.
In Cat Shit One '80, the story continues to follow the three main protagonists as they became involved in various low intensity conflicts in the 1980s. Perky, now a member of the elite Delta Force, was attached to the Special Air Service and was involved in various SAS operations while Rats and Bota were involved with the US operation in Afghanistan against the Soviet invasion.