GD73/22 SOUTH CHINA SEA MILITARY EXERCISES IN AREA BOUNDED BY 21-18-30N 113-20-00E，21-18-30N 113-31-19E，21-08-00N 113-31-19E AND 21-08-00N 113-20-00E FROM 0000 UTC TO 0400 UTC 30 JUL. ENTERING PROHIBITED GUANGDONG MSA CHINA
