Before the emergence of four-core lines or even optical telephones, two-core electrical signal call lines were relatively easy to be monitored or occupied.
In the Beizhili region of Liangjian World, radio stations and battery boxes are relatively valuable dual-use materials for both military and civilian use. As an agricultural country, China does not produce such exquisite industrial products, and relies entirely on foreign companies to import them for sale. When this area became an occupied area three years ago
Later, the cost of acquisition became even higher.
Although the Rising Sun Country is an industrial country, its natural resources are relatively scarce, and its main coal, iron and metallurgical raw materials are extremely dependent on imports. Its inland navy has almost open competition for the distribution of war resources. It has built one each for air combat, communications, pontoons and other units.
Setting up an independent team is a typical case of reinventing the wheel.
The North China Expeditionary Force is a dispatched agency supported by the Army's factions. The procurement of radio equipment is naturally closely related to the Army's radio production and suppliers. As for whether it is enough and whether it is useful, it is not a priority.
Therefore, limited by the communication command unit, a team of more than a thousand people is basically the basic establishment of the army. Moving to the grassroots level, you have to rely on mules, horses and even two-legged messengers to exchange information and convey orders.
In areas with good transportation conditions, it is not too slow for grassroots departments to deliver information to and from a horse race on the highway or take a train on the railway line within half a day. In areas where guerrillas often appear, the risk of doing so cannot be easily accepted.
It is not a big deal to use the puppet troops as cannon fodder or to consume the soldiers recruited for 15 cents, but delaying the fighter plane or leaking military information and orders are strongly resented by the aggressor officers.
In such an economic environment, wired telephones have become a solution for communicating with grassroots garrisons and opening up the last five kilometers of military orders. The cost of two-core telephone lines is low, and the telephone structure is simple and easy to manufacture and repair. For pauper imperialism, no matter how hard it is,
Couldn't be more appropriate.
It was just left in the countryside outside the political office. The wired telephone lines were either buried shallowly in trenches or suspended on poles to ensure that the invaders and occupying forces could communicate with each other. Maintaining a "cage" at low cost would
Divide the occupied area and spread out the few troops stationed there like a lining.