Military: War
The Davidic Crusades were several Crusades launched by King David after the Cradle Rebellion on Midgard with the intent to unify the universe under his authority. There were a total of 5 Crusades, one for each of the 5 Rings, and in total, they lasted ~600 Standard Imperial Years (SIY, a system established by King David). This Midgard Empire either controlled most of the universe or exerted significant political, economic, and military influence over states that did. David's son Solomon was named the 1st Middle Emperor (Medius Rex) and the Midgard Empire came to rule the universe, exerting unparalleled influence on all other Mortal Realms. The ruling power of the Empire was the House of Kings, the noble house founded by David and established by Solomon who finished the Davidic Crusades after his Lord Father passed.