Flag of Schleswig-Holstein flag on 18 January 1957. The plain tricolour is the state's civil flag. Government authorities use the state flag ("Landesdienstflagge"), where the flag is defaced by the state coat of arms. The tricolour was previously used for the Prussian province of Schleswig-Holstein (1868-1946). It is almost identical to the flags of the Kingdom of Yugoslavia, Serbia and Montenegro (FR Yugoslavia), as well as the flag of the Netherlands inverted. Flag of Schleswig-Holstein The flag of Schleswig-Holstein is a horizontal tricolour of blue, white, and red. Schleswig-Holstein is one of the 16 states of Germany, comprising most of the historical duchy
Flag of Ireland it did not recognise "Muirchú"'s flag. Irish-register ships could fly the Red Ensign until September 1939, after the outbreak of World War II, when a decree under the state of emergency was made, to ensure neutral Irish ships were not mistaken for British ships. Some ships flying the tricolour were nevertheless sunk by Germans. When the tricolour was hoisted over the passenger ferries in Holyhead their British crews went on strike. Five days later their owners transferred the ferries to the British register and the Red Ensign was restored. On the other hand, the Belfast to Liverpool ferry, British owned