The Shattering Peace - John Scalzi

THE PEACE IS SHATTERING\n For a decade, peace has reigned in interstellar space. A tripartate agreement between the Colonial Union, the Earth, and the alien Conclave has kept the forces of war at bay, even when some would have preferred to return to the fighting and struggle of former times. For now, more sensible heads have prevailed – and have even championed unity.\n But now, there is a new force that threatens the hard-maintained peace: The Consu, the most advanced intelligent species humans have ever met, are on the cusp of a species-defining civil war. This war is between Consu factions... but nothing the Consu ever do is just about them. The Colonial Union, the Earth and the Conclave have been unwillingly dragged into the conflict, in the most surprising of ways.\n