In 1792, Louis Antoine joined the émigré army of his cousin, the Prince of Condé.

Many French cavalrymen joined the émigré army of the Prince du Conde.

On 23 June 1795 a British fleet led by commodore John Borlase Warren landed 3,500 soldiers of the émigré army in Carnac.

After fighting in one of the émigré armies, he became an Austrian officer in 1798.

By the 20th, the fortress had fallen and Hoche swiftly advanced down the peninsula, defeating the hopelessly trapped émigré army.

Despite the failure of the émigré army, de Charette de la Contrie continued to offer resistance.

The same year he joined the Mortemart regiment (of his uncle the Duke de Mortemart) of the French émigré army.

In 1789, La Trémoille and his parents emigrated from France, and he joined the émigré army under the Prince of Condé.

The émigré armies were formed by aristocrats and nobles who had fled from the violence in France after the August Decrees.

In 1791 he joined the émigré army with whom he served against the French Republic during the early stages of the French Revolutionary Wars.