- January 31st: Rim Worlds Republic forces finally conquer the Terran Hegemony world of New Dallas after prolonged resistance.
- July 1st: Battle of Epsilon Indi.
- A regiment from the 161st Mechanized Infantry Division which had defected to the Taurian Concordat is destroyed.
- Two regiments from the 218th Mechanized Infantry Division which had defected to the Magistracy of Canopus are destroyed.
- Allied Aerospace's BlackWasp factory on Pollux destroyed.
- Amaris-Kerensky Civil War begins.
- August: Rim Worlds Republic invaded and largely destroyed.
- 28 January: General Tolstin Eukai of the Rim Worlds Army is executed by Stefan Amaris for his incompetence during the campaign for Dieron.
- 31 January: Stefan Amaris declares himself Director-General of the Terran Hegemony and leader of the Star League.
- Carlos Kataga dies.
- RMP-5G Rampage assault BattleMech enters service with Rim Worlds Republic Forces.