Who are “his angels” that fight under the dragon’s leadership?
Revelation 12:7 (ESV)
7Now war arose in heaven, Michael and his angels fighting against the dragon. And the dragon and his angels fought back,
The pronoun his indicates that these angels belong to the dragon and are aligned with him. These will be the third of the stars of heaven that the dragon had swept down with his tail (Revelation 12:4).
7 Now war arose in heaven, Michael and his angels fighting against the dragon. And the dragon and his angels fought back,