Which rotary-wing movement technique is appropriate when enemy contact is imminent?

Bounding Overwatch is the appropriate rotary-wing movement technique when enemy contact is imminent because it emphasizes security and the ability to respond to threats effectively. This technique involves moving in a coordinated manner where one element moves while the other provides cover, allowing for a greater focus on situational awareness and immediate response to enemy actions.

In scenarios where contact with the enemy is expected, such as in a hostile environment, Bounding Overwatch allows a unit to advance while maintaining a secure posture, reducing the risk of being caught off guard. The dual nature of movement and covering fire enhances the unit's effectiveness, as they can quickly adapt to any emerging threats while continuing to move towards their objective.

Other movement techniques, such as Traveling Overwatch and Traveling, generally do not provide the same level of security needed for imminent contact. Traveling focuses on speed and continuous movement, while Traveling Overwatch does provide some cover but may not prioritize security in the same way Bounding Overwatch does, making it less suitable for situations of expected enemy engagement.