Dael was a commander and major stationed at Base D-55, a Galactic Republic installation on the planet Dantooine; he was a male Human. Following the signing of the Treaty of Coruscant, Dael, along with other commanders, opposed adhering to its terms, believing the agreement to be temporary. During the battle of Dantooine, Grand Master Satele Shan and Lieutenant Harron Tavus visited Dael in an attempt to persuade him to order a retreat. Dael declined to pull back and instead, alongside his fellow commanders, actively fought against the Imperial military.