NORTH BOHAI SEA MILITARY EXERCISES 031900UTC TO 041000UTC DEC.IN AREA BOUNDED BY 1）40-54.93N 121-20.12E，2）40-52.80N 121-28.67E，3）39-49.02N 120-34.13E，4）40-00.37N 120-15.90E AND IN AREA BOUNDED BY 1）40-21.55N 120-34.62E，2）40-21.55N 120-36.43E，3）40-11.33N 120-30.47E，4）40-11.82N 120-29.20E .ENTERING PROHIBITED. LIAONING MSA CHINA.