Final answer:
The statement is false; clearance to fire involves careful coordination and established protocols, not merely the transmission of a call for fire. 'At my command' and 'danger close' are control measures indicating specific conditions under which fire can be authorized.
Step-by-step explanation:
The statement that clearance to fire is the transmission of the Aviation/SOF gunship call for fire unless "at my command" or "danger close" has been stated is false. In military operations, clearance to fire typically requires several steps for verification to ensure the safety of friendly forces and to achieve the intended tactical goal. Terms like "at my command" and "danger close" are used to indicate specific control measures in a call for fire scenario, where "at my command" refers to the need for specific authorization before engagement, and "danger close" indicates that friendly forces are within close proximity to the target, typically less than 600 meters for artillery and mortar fire, requiring extra caution. Therefore, clearance to fire is not just about the transmission of a call for fire but involves careful coordination and adherence to established protocols.