Which of the following is included in the second transmission of Call for Fire?

The correct response is focused on "Target Location." During the second transmission of a Call for Fire, it is crucial to provide the precise coordinates or description of the target's location. This information is vital for the firing unit to accurately determine where to engage and ensure that their rounds are directed at the intended target. The accuracy of the target location influences the effectiveness of the fire support being requested and is key to conducting safe and effective operations.

In the Call for Fire procedure, different transmissions contain specific elements, and the second transmission is specifically designed to relay the target's location after the initial warning order has been received. This structured format helps maintain clarity and reduces the risk of misunderstanding between the observer and the firing unit.

The other elements mentioned, such as Observer Identification, Warning Order, and Method of Engagement, are indeed important aspects of the entire Call for Fire process but are communicated at different stages or in other specific transmissions, rather than being part of the second transmission.