In Attacks, Rommel describes how his light infantry made remarkable progress through mountainous terrain, sometimes in a helter-skelter fashion, with slower elements catching up, David Grossman (On Killing) notes, through wire communications:
Often this wire served as a navigation aid for follow-on elements and runners, who were able to use the wire as a guide during night movements in pouring rain. Today, bad radio communications, poor land navigation, and breaks in contact are some of the recurring problems in the conduct of mountain operations. Combined with this potential enemy emphasis on radio electronic combat, which can make radio communications an extremely risky business. The fact that Rommel was able to run extensive wire communications in this environment and then use it as a navigational aid is a useful lesson.