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 were used to spy on the enemy. They were also used to communicate, send supplies, and drop bombs.
Hot air balloons were used for reconnaissance during the civil war.
This may not help, but I didn't think it had ANYTHING to do with hot-air balloons...
The first use of hot air balloons was in the American Civil War for surveillance of troop movements.
bbksu
telegraphs hot air balloons spies/couriers telegraphs hot air balloons spies/couriers
Hot air balloons
The Civil war
To spy on the enemy
Hot air balloons
Hot air balloons
the civil war of which country?
They were used for reconnaissance of troops in the civil war. They were the first type of "spy" from the air.