What is the only movement that begins with the right foot?

The movement that begins with the right foot is the "Right step, MARCH." This command is unique in that it specifically instructs individuals to step with their right foot first, which is a standard practice in military drill and ceremonies for movements involving lateral or diagonal adjustments.

In contrast, other options listed do not start with the right foot. For instance, the "Right face" involves rotating to the right on the left foot while the right foot pivots into position, and the "Right about face" also pivots on the right foot and does not initiate movement with the right step. The "Right hand salute" is a stationary position that does not involve stepping at all; instead, it focuses on the correct hand positioning for saluting.

Understanding drill commands and their execution is crucial for maintaining discipline and uniformity in military formations, and this particular command highlights the specific requirement of starting with the right foot as part of the marching sequence.