Which function is NOT performed by TACLOG?

The function that is not performed by TACLOG is controlling ship movements. TACLOG, or Tactical Logistics, primarily focuses on logistical support and coordination during amphibious operations, which includes activities like coordinating Combat Service Support (CSS) buildup and monitoring the landing of scheduled waves. It serves as a communication bridge for logistical needs and ensures that the necessary supplies and support are in place during the operation.

Controlling ship movements is typically handled by naval operations commands or those responsible for maritime navigation and fleet movement. This involves tactical decisions regarding the positioning and movement of ships based on various operational factors, including safety, mission objectives, and environmental conditions. As such, while TACLOG plays a significant role in logistical aspects, it does not directly control ship movements, which is why this is the correct choice.