To spy on the enemy
The first use of hot air balloons was in the American Civil War for surveillance of troop movements.
The Civil war
Hot air balloons
no
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.
The first use of hot air balloons was in the American Civil War for surveillance of troop movements.
Hot air balloons
The Civil war
Hot air balloons
Hot air balloons
Hot air is used for hot air balloons.
They were used for reconnaissance of troops in the civil war. They were the first type of "spy" from the air.
both sides used it to spy on each other
no
Hot air balloons are now mostly used for leisure
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