- February: Free Worlds League forces attack Lyran Commonwealth, eventually taking Bolan and other worlds.
- June: Battle of Cameron.
- 8 July: Draconis Combine begins assault on New Avalon.
- 27 July: Buena Collective military seizes Loburg.
- 12 August: Battle of Marlette begins.
- September: Arc-Royal falls to Clan Jade Falcon.
- 9 September: Battle of Marlette ends with Capellan]]-Federated Suns ceasefire.
- June: Julian Davion meets Devlin Ston] on Terra, reaffirms alliance between their two states.
- 7 July: Buena Collective secedes from Lyran Commonwealth.
- November: Coordinator Yori Kurita begins month-long celebration of the New Avalon victory.
- Republic of the Sphere archaeologists discover the prototype Rifleman III wreckage at a former battle site on Terra.
- July: Anastasia Kerensky becomes saKhan of Clan Wolf.
- 3 August: Betrothal of Reva Doru and Bryant Calderon announced.
- 4 August: Philip Hughes dies in a hunting accident.
- October: Pope Beneficent XVII of the New Avalon Catholic Church is executed by Draconis Combine authorities.
- Triskelion heavy tripod BattleMech begins development on Devil's Rock in the Republic of the Sphere.