在万里长征途中,红军时时受敌重兵围追堵截,却未中过一次埋伏,在国民党军设置的包围圈中都能准确地找到空隙钻出,这主要是依靠电台侦察及时掌握了准确的情报。当年红军电台有一条基本要求:“人在密码在,人亡密码亡。”遇到危急关头,首先砸电台毁电码。机要人员都会毁掉一切机密,直至牺牲也不泄露。红军长征的先头部队中,有一批侦察兵,抓舌头、化装探路立下了大功,不过这类侦察一般只具有战术价 During the Long March, the Red Army was chased by enemy troops from time to time without any ambush. It accurately found the gaps in the encircled encirclement set by the Kuomintang army. This was due to the timely grasping of accurate intelligence by means of radio reconnaissance. At that time, there was a basic requirement for the Red Army radio station: “People are in the password, and the password dies.” "In a critical moment, you first hit the radio to destroy the code. Confidential officers will destroy all secrets, until the sacrifice is not leaked. Among the pioneers of the Long March of the Red Army, a group of scouts, catching tongues and masquerading pathways made great contributions. However, such scouts generally have tactical prices