"The Polish Navy during the Second World War" The two Polish destroyers, ORP Grom (Thunder) and ORP Błyskawica (Lightning) seen after Operation 'Pekin', the evacuation of units of the Polish Navy to British home waters in September 1939. The destroyers are moored side by side at a buoy. Photo shows: View amidships of ORP Błyskawica, with steam up.