The 11 pointed star symbolizes the 11 Divine Warriors of Yllsi, hope of Sidara.

cuuuuuute.

The lines behind represent the flow of life and order, which is what Yllsi is deity of.

The wings are representation of the people, who will support the body that is the Warriors and Yllsi to a bright future.

And it's red because that is Sidara's national color.