In reaction to a probable invasion by Napoleon, the Royal Military Canal was constructed in the early 1800s for protection. Along the canal, defensive towers were placed. From Seabrook in Kent to East Sussex, the canal stretches for 28 miles. The Military Canal has the normal assortment of freshwater species seen in rivers across the United Kingdom, including Carp to 30lb, Pike to 20lb, Tench to 8lb, Roach to 2lb, Perch to 2lb, Bream to 6lb, Eels, Minnows, Ruffe, and Skimmers, among others.