Originally published in 1999, this early work by Kago details an alternate version of WW2, which sees Japan fighting with giant, female human tanks that use shit as projectiles.

The original manga has been translated in 2010 but this 2016 reprint adds a new 22-page chapter at the end, which has now been translated as well.

Alternate pages from the previous edition have been included as an extra.

220 pages, in English

https://sukebei.nyaa.se/?page=view&tid=2233516