IV Army Colour
|Motto:: Quantum Praedecessores|
|Established||10 March 2016|
|Engagements||Lundener Civil War|
|Commander||Archduke Anton of Karnia|
The Karno-Ruthenian Fourth Army is a Karno-Ruthenian is a permanent field army and was established in 10 March 2016 as part of the Karno-Ruthenian Army in Karnia after the creation of the Karno-Ruthenian Empire. The task of the Army since its foundation is to defend the Karnian Empire and its citizens.
The history behind the foundation of the Fourth Army begins with the signing of the Karno-Ruthenian Compromise of 2016 and the foundation of the Karno-Ruthenian Empire. Karnia didn't established its own military, so, the IV Army and its inspectorate was created in June 2016 to serve as a defensive force of the Empire in the event of conflict.
- Archduke Anton of Karnia - 10 March 2016 - present.