After Third World War, a cheap, effective defence was desired by the Soviets. The answer came with the battle bunker. This simple bunker could only be garrisoned by Conscripts (actually, by any friendly infantry capable of garrisoning buildings; if the Soviet commander had access to G.I.s or Initiates, they could enter too) and could hold five of these. These defenses were very effective, as they not only could fend off infantry with ease, but tanks and other vehicles as well, due to the immense volume of fire; individual bullets merely dent armor, but a large stream eventually breaks through. These simple defensive structures were first used during the Psychic Dominator Disaster.