 Complete the following phrase:  During the Franco-Prussian War of 1870, the regiment was part of the 2nd Brigade of General of Division Georges Eugène Blanchards III Corps. After its arrival at the front on 8 August, it protected baggage trains in the retreat to Metz following the Battle of Forbach-Spicheren, before serving in a reconnaissance role, and facing the Prussians at the battles of 