France had a population of between 22 and 25 million at this time, and maintained the largest standing army in Europe. In peacetime it might have amounted to about 200,000 men; in times of war, it could be anything up to half a million. A substantial part of Louis XV's army consisted of numerous regiments of guard cavalry, heavy cavalry and dragoon regiments, which were considered the best and noblest part. These many units form the subject matter in this first of five fascinating volumes [Men-at-Arms 296, 302, 304, 308 & 313] by René Chartrand covering the army of Louis XV's.