 Complete the following phrase:  They were born to Marie Adrienne Bassez and the cavalry sergeant François Louis Joseph Fernig, who educated them in the use of weapons, and when the Austrians invaded France in 1792, they enlisted in the defense dressed as men and were admired for their courage. When their sex were discovered, they were allowed to remain in service, which happened in at least some cases during this period. They served during the Battle of Valmy, Battle of Jemappes, Battle of Anderlecht, and the 