战争中,通讯联络是十分重要的。古代没有电报、电话,战争中靠骑马来传递军事情报。如果中途比较远,军情紧急,用马来作通讯工具就嫌太慢了,为此古代常修筑烽火台,现在北京八达岭附近,还保留着烽火台,点燃烽火能把情报及时传出去。修建一个烽火台,可以报告有无敌人来犯。如果修建 In the war, communication is very important. In ancient times, there was no telegram, telephone call or military riding to relay military intelligence during the war. If the distance is too far, the military emergency, the horse as a communication tool is too slow, for which ancient beacon often build beacon, and now Beijing near Badaling, but also keep beacon towers, ignited the flames can promptly spread the intelligence out. Build a beacon, you can report whether the enemy to commit. If built