Sham fighting in the air opens - Sound detection machine for planes, installed at Yazu seashore.The planned big Air Defence Manouver at the cost of £6,000,000, in divisions, many warships, and planes and in the co-operation of some 800,000 of Yong Men Association in direct and indirect of 6,000,000 citizens of Tokyo, has been begun this morning at Yazu seashore of Chiba Prefecture as its beginning.This big sham fighting is to be held for 3 days in Tokyo and in another part of the prefectures for one week and all rights, even the signal right of the railway are to be put out for air defence, from 9 o'clock every evening, covering 6 prefectures. August 07, 1933. (Photo by Shimbun Rengo News Photos Service).