is a Japanese manga series written and illustrated by Michitsune Nakajima. It began serialization in Shinchosha's seinen manga magazine Monthly Comic Bunch magazine in January 2011. It was later transferred to Kodansha's shà Ânen manga magazine Bessatsu Shà Ânen Magazine in August 2022.
The story takes place in a fictionalized version of 19th century Europe in which one of its countries, Weissen, stands as one of the strongest regional military powers on the continent. Major Bernd Baltzar is a young and ambitious rising star in the Weissen military, until he suddenly receives new orders that he is to be sent to the previously neutral country of Baselland as an advisor and instructor for the nation's military academy.
However, Baltzar finds his work cut out for him when he sees the poor state of Baselland's military, which uses both obsolete tactics and weaponry. In addition to trying to modernize Baselland's military, Baltzar also finds himself getting caught up in Baselland's internal politics between its two feuding crown princes, as well as international intrigue as Weissen competes with its rival Ezreich over influence within Baselland. Baltzar will have to utilize all of his knowledge and cunning to ensure both his own and his students' safety.
Written and illustrated by Michitsune Nakajima, Gunka no Baltzar was serialized in Shinchosha's seinen manga magazine Monthly Comic Bunch from January 21, 2011, to August 19, 2021. It later began serialization on Kodansha's shà Ânen manga magazine Bessatsu Shà Ânen Magazine on August 9, 2022. The series chapters have been collected into twenty volumes as of September 2025.
A spin-off manga written and illustrated by Kyà Âichi, titled Gunka no Baltzar: Ginkai no Jurij, was serialized on Shinchosha's Kurage Bunch manga website from April 20, 2021, to May 10, 2022. Its chapters were collected in two volumes.
The series had 1 million copies in circulation by June 2022.
The series was ranked tenth in the Nationwide Bookstore Employees' Recommended Comics of 2013.