Early dragoons were not organized in squadrons or troops as were cavalry, but in companies like the infantry: their officers and non-commissioned officers bore infantry ranks. Dragoon regiments used drummers, not buglers, to communicate orders on the battlefield. The flexibility of mounted infantry made dragoons a useful arm, especially when employed for what would now be termed "internal security" against smugglers or civil unrest, and on line of communication security duties. During the English Civil War dragoons were used for a variety of tasks: providing outposts, holding defiles or bridges in the front or rear of the main army, lining hedges or holding enclosures, and providing dismounted musketeers to support regular cavalry. In the closing stages of the Battle of Naseby Okey's Dragoons, who had started the action as dismounted musketeers, got on their horses and charged, possibly the first time this was done.