ZCZC JA50 231331 UTC SEP KALINGRAD NAV WARN 224/26 SOUTHEASTERN BALTIC SHIPS EXERCISES IN AREA BR-42 302100 UTC SEP THRU 312100 UTC OCT DANGEROUS TO SHIPPING 55-20.0N 020-08.0E 55-20.0N 020-25.0E 55-07.6N 020-25.0E 55-07.6N 020-08.0E CANCEL THIS MESSAGE 312200 UTC OCT NNNN