Tensions between Equestria and the Stallionists have been rising ever since they receded from Equestria and became their own country known as the ' Stallionist Union', after that they builded up their military and now threaten not just Canterlot but all of Equestria as Stalion has plans to expand his Empire of Stallionists

In a move that amazed all of Equestria in the Second Equestrian World War, the New Lunar Republic shipped an army across the Equestrian Ocean and stormed into Solar Empire occupied Equestria. Millions of ponies were caught up in the struggle for the beaches, but victory or defeat came down to the bravery of individuals. From Tank Commanders, to Paratroopers, Nightmare Rangers, to Lunar Resistance Fighters, they all have stories to tell.