早在第一次世界大战中就显现出一个真理:没有步兵协同,坦克不可能有效地行动。整个20世纪,军事理论家和装备设计师都在寻找改进坦克和步兵协同的途径。一个清楚的现象逐渐显露出来,这就是,理想的步兵应具有同坦克一样的机动和防护。也就是说,步兵必须拥有装甲化的输送工具。然而,“步兵输送车”的数量较之坦克需要更多,这意味着其价格应大大低于坦克。这种车辆是这样演化的:汽车-高机 As early as World War I, one truth emerged: Without infantry coordination, the tank could not act effectively. Throughout the 20th century, military theorists and equipment designers were looking for ways to improve synergies between tanks and infantry. A clear phenomenon gradually revealed, that is, the ideal infantry should have the same mobility and protection of tanks. In other words, infantry must have armored delivery tools. However, the number of “infantry carriers” needed more than the tank, which means that its price should be significantly lower than the tank. This kind of vehicle is evolved like this: car - high machine