both sides used it to spy on each other
The first use of hot air balloons was in the American Civil War for surveillance of troop movements.
The Civil war
To spy on the enemy
Hot air balloons
Hot air balloons
Hot air balloons
They were used for reconnaissance of troops in the civil war. They were the first type of "spy" from the air.
no
Hot air balloons are now mostly used for leisure
Yes, hot air balloons were used during the Civil War for reconnaissance purposes. The Union Army established a Balloon Corps, using balloons to gather intelligence on enemy troop movements and positions. The balloons provided a unique vantage point for observing the battlefield.
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telegraphs hot air balloons spies/couriers telegraphs hot air balloons spies/couriers