1. kindly endorsement and guidance; “the tournament was held under the auspices of the city council”
  2. armor plate that protects the chest; the front part of a cuirass

From LookUp: Noun [in singular]

  1. the protection, backing, or support of a particular person or organization negotiations were conducted under the aegis of the UN

Roman History Greek History (in classical art and mythology) an attribute of Zeus and Athena (or their Roman counterparts Jupiter and Minerva) usually represented as a goatskin shield.