Ask AI: In a battlefield, what are the ways soldiers can communicate without the use of radios?

1. Signalling Flags: Flags can be used to send coded messages, directions or warnings to other troops. 2. Sign Language: Sign language can be used to communicate simple instructions or messages, such as the location of an enemy or the need for reinforcements. 3. Messengers: Soldiers on foot or horseback can be sent as messengers to communicate with other units or deliver important messages or orders. 4. Horns and Drums: Horns and drums can be used to signal orders, such as a call to assemble or a warning to retreat. 5. Fires: A single column of smoke can be used to signal the presence of enemy forces or to alert a unit to move. 6. Reflective Mirrors: A mirror can be used to reflect sunlight and send signals to other troops. 7. Whistles: Whistles can be used to give simple orders or alert troops of danger in the area.