-Sergeant Jim Davis, 3rd Marine division. The Battle of the Bliss was the last conflict between UNSC and the Swarm in the Chiaras system. And occurred on March 7, 2649; when a gargantuan Swarm fleet entered the system and began the subsequent bombardment of Bliss's lightly defended moons. A counteroffensive was launched by the UCG, but ultimately failed when the sheer numbers of the Swarm overwhelmed the allied fleet and forced an intense, three day long ground campaign that ended in the destruction of Bliss.