Although an invasion of Piedmont failed, an invasion of Spain across the Pyrenees took San Sebastián, and the French won a victory at the Battle of Fleurus, occupying all of Belgium and the Rhineland.
Although an invasion of Piedmont failed, an invasion of Spain across the Pyrenees took San Sebastián, and the French won a victory at Fleurus, the French Aerostatic Corps use of the reconnaissance balloon L ' Entreprenant marked the first military use of an aircraft that had decisive influence on the outcome of the battle, and occupied all of Belgium and the Rhineland.
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