GD0078 SOUTH CHINA SEA GUN FIRING EXERCISES IN AREA BOUNDED BY 23-18-00N 117-16-00E，23-18-00N 117-24-00E，23-10-00N 117-24-00E AND 23-10-00N 117-16-00E 0000UTC TO 1000UTC DAILY FROM 15 TO 20 APR. ENTERING PROHIBITED SHANTOU MSA CHINA
