Usually as under the aegis: guidance, protection; endorsement, sponsorship.
A mythological shield associated with the Greek deities Zeus and Athena (and their Roman counterparts Jupiter and Minerva) shown as a short cloak made of goatskin worn on the shoulders, more as an emblem of power and protection than a military shield. The aegis of Athena or Minerva is usually shown with a border of snakes and with the head of Medusa in the center.
The act of guarding, protecting, or guiding; guardianship; protection
The state of being under a guardian or a tutor; care or protection enjoyed.
Instruction; teaching; guidance.