What are the two bugle calls played at retreat?

The bugle calls played at retreat are specifically designed to mark the end of the duty day and to honor the flag as it is being lowered. "Retreat" signals the beginning of the ceremony, while "To the Color" is played as the national flag is lowered, creating a moment of respect and reflection.

This practice is not only about the ceremonial aspect but also serves to instill discipline and recognition of the flag's significance and the sacrifices made by service members. The other options do not reflect the proper calls played during this ceremony. For example, "Charge" and "Reveille" are associated with morning routines and specific combat actions rather than with the retreat ceremony itself. Similarly, "Assembly" and "Taps" serve different purposes in military operations and ceremonies, focusing on gathering troops and honoring the dead, respectively. The "Adjutant" and "Recall" calls are related to different functions in military operations and do not pertain to retreat. Thus, the correct pairing of "Retreat" and "To the Color" captures the essence of this important military tradition.