 On several major forts, for protection against artillery fire, casemated barracks were erected, with more than three kilometers of galleries and six kilometers of tunnels.On the land front – 1290 guns and 268 machine guns; including 572 ranged weapons, 718 melee weapons, 268 guns, 64 mortars, and 36 rocket machines.On the coastal front – 316 guns and 56 machine guns; including 212 Ranged weapons, 104 melee weapons, 56 guns, 36 rocket machines.