When people go to war, sometimes they like to have something that reminds them of their beliefs and gives them strength. This is why some US military members choose to wear symbols of their religion, or have them on their equipment.
For example, Christians might wear cross necklaces, Muslims might carry prayer rugs, and Jewish soldiers might have a Star of David on their uniform. These symbols remind them of their faith and give them the courage to face difficult situations and challenges during war.
Sometimes, symbols can also represent service branches, like the Anchor for the Navy or the Winged Sword for the Air Force. These symbols show people what branch they belong to in the military.
Overall, religious symbols in the US military serve as a way to comfort, guide, and unite troops who have different beliefs.