Final answer:
The hand salute is a symbol of respect and comradeship among service personnel, standing as a traditional military courtesy.
Step-by-step explanation:
A symbol of respect and comradeship among service personnel is displayed by the courtesy of a hand salute. This gesture is a long-standing military tradition that is used to show respect for fellow service members, higher-ranking officers, and even the national flag. Unlike a bow, which is more common in Eastern cultures, the hand salute is a standard sign of respect in Western military practice, signaling both acknowledgment and mutual respect among those in service.