Complex sentence: In doing so, Vincent avoided Friedrich von Katzler's Prussian advanced guard which counted three cavalry regiments, three fusilier (light infantry) and two grenadier battalions, two jäger companies and a half-battery of artillery.
Split into simpler sentences: In doing so, Vincent avoided Friedrich von Katzler's Prussian advanced guard. This powerful force counted three cavalry regiments, three fusilier (light infantry) and two grenadier battalions, two jäger companies and a half-battery of artillery.