in Scotland As tensions between Poland and Germany increased, the Commander of the Polish Fleet,
Counter Admiral Józef Unrug signed the order for the operation on 26 August 1939, a day after the signing of the
Polish-British Common Defence Pact. The order was delivered in sealed envelopes to the ships' command. On 29 August, the fleet received the signal "Peking, Peking, Peking" from the Polish Commander-in-Chief, Marshal Śmigły-Rydz: "Execute Peking". At 12:55 hours, the ships received the signal via
signal flags or radio from the signal tower at
Oksywie. The respective commanders of the ships opened the envelopes and departed at 14:15 under the command of
Komandor porucznik Roman Stankiewicz.
Błyskawica was commanded by Komandor porucznik Włodzimierz Kodrębski,
Burza by
Komandor podporucznik Stanisław Nahorski and
Grom by Komandor porucznik Aleksander Hulewicz. The ships sailed without any problems through the Baltic, entering
Øresund after midnight. In the passage they encountered the German light cruiser
Königsberg and a destroyer, but as the war had not yet started there was no combat. The Polish ships then passed through the
Kattegat and
Skagerrak. On 31 August, the ships were spotted and followed by German reconnaissance
seaplanes, and the group changed course towards
Norway in order to shake off the pursuit during the night, when they returned to their original course towards the UK. The ships entered the
North Sea, and at 0925 on 1 September learned about the
German invasion of Poland. At 12:58, they encountered the
Royal Navy destroyers and and received a
liaison officer. At 17:37, they docked in
Leith, the port of
Edinburgh. ==Aftermath in Allied Forces==