Hakatami War

The Hakatami War, or the November Embarrassment was a conflict fought between the Nichibotsu Shogunate and the Gretian-Tyretian Empire following the destruction of the HMIV Trafalgar under unknown circumstances.
At the Battle of the Hakatami Sea, two Nichibostu destroyers were waylaid by Gretian battleships, one was destroyed, and the second rammed and sunk the HMIV Coralina. 
At the Battle of Yokotomo, the Gretians attempted to attack the fleetyard there, but all ships were destroyed. At Nakashimi, the Gretians were attacked, and the Empress Evelyn struck by a torpedo, forcing a withdrawal.
The war was an unmitigated disaster for the Gretians, and a stunning success for the Nichibotsu. It is partially responsible for a period of Upheaval in The Old World.