Answer:
They are the group who manages the winged engines of war.
I am the first you ever saw, what greets you every morning and what goes out in the end.
The day is their night and the night is their day, when I shout and they shout back I run away.
What is it that given one, you'll have either two or none?
I'm a small ring shaped fried cake, often with bavarian cream or fruit filling, and sometimes covered in icing and sprinkles.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.