On 15th November 2015, King Sombra is running as a monarch on Crystal Empire, so the Equestrian Crystal Empire royalty Princess Cadence and Prince Shining Armor decided to defend their position as the current monarch. So after that, the Crystal Empire ponies split into two. The supporters of King Sombra and the supporters of Princess Cadence and Shining Armor. Over 500 ponies and changelings were killed in the conflict. The conflict lasts for 9 months. Crystal Empire looks well today, but the scars won't easily fade from the memories of the Crystal ponies.