They are an indissoluble trinity. His flag includes the constellation of the Big Dipper plus the North Star, Polaris. The flag of Vietnam contains a five-pointed star. The five points stand for the farmers, workers, intellectuals, youth, and soldiers. Turkey's flag is a red field with a star and a crescent Moon, both symbols of the Islamic faith.
Many traditions explain the star and crescent.
The crescent Moon honors a goddess whose symbol was the Moon. A star over the crescent represents the Virgin Mary and the Star of Bethlehem. We have to look upward, toward heaven, to see the stars. We admire stars but cannot touch them. They can symbolize hope, prosperity,or perfection, or stand for some ideal or goal which the human spirit strives to attain.