Recently the Japanese in the Arakan evolved a new
technique of cutting British telephone lines. The enemy
cuts them in such a way that there is no interference
with the ringing of the telephone bells, and yet, when a
conversation is begun, the transmission of the voices
is so weak that they are likely to be unintelligible.
When the Japanese discover a British telephone line, they
cut a 1/4-inch section from all but two
strands of a seven-strand wire. The remaining two are
left intact (see fig. 3). Insulation tape then is
wrapped around the wire to suggest that an ordinary
splice has been made by British linesmen.
|Figure 3. Japanese
Military observers report that if linesmen are able to
identify their own splices, the sections cut by the enemy
can be detected and repaired much more rapidly.