Detailed Instructions: Given an English sentence, convert it into the french language.
Q: The Civil War broke out in 1918 , and Budyonny organised a Red Cavalry force in the Don region , which eventually became the 1st Cavalry Army .
A:
Lorsque la guerre civile russe éclata en 1918 , Boudienny organisa un corps de cavalerie rouge dans la région du Don qui constitua par la suite la Première armée de cavalerie .