The members of these companies, and the fire companies of any incorporated town or city are exempt from military duty in time of peace.
Code 1858, § 1709 (deriv. Acts 1831, ch. 27, § 2); Acts 1877, ch. 52, § 1; Shan., § 3022; Code 1932, § 5247; T.C.A. (orig. ed.), § 6-2404; Acts 2008, ch. 1159, § 2.