The War Wizards
The War Wizards are a group of battle-mages and sorcerers loyal to the Crown of Cormyr. They are led by the Royal Mage of Cormyr, currently Ganrahast.
Around a third of the War Wizards were either killed or driven mad around 1385 DR due to The Spellplague. Originally created and led by Vangerdahast, the greatest mage to have ever taken up the mantle of leader of the War Wizards. For decades he controlled the Kingdom of Cormyr, in fact if not in title. While the king would fight the wars and sit on the throne, Vangerdahast would keep the court in order and keep control of the various factions who wished to dethrone the king. He could also to a large extent control the Harpers who reside in the kingdom. He eventually retired and through an arcane ritual transformed himself into a dragon: a dormant guardian until such time as Cormyr needs him again.
After the tumultuous events of the Spellplague, and once things had settled down a bit, Ganrahast took the mantle of Royal Mage and leader of the War Wizards. He was not as war-minded as some others within the War Wizards would prefer, and has kept the ranks of the War Wizards both secretive and unstructured. It is rumored that Cormyr currently has 92 war Wizards stationed in Suzail, 16 in Marsembar, and 5 within Castle Craig, North of Cormyr.