original: in 1871 the fortification received an additional barracks .
simplifications: in 1871 the fortification received an additional barracks . in 1871 the fortification received an additional barracks . in 1871 , the reinforcement received an additional barracks . in 1871 the fortification got more barracks . the fort added a barracks in 1871 . in 1871 the fortification obtained an additional barracks in 1871 more barracks were added to the fort . in 1871 the fortification received an additional barracks .