 The banner of Victor Emmanuel III of Italy was also removed from the chapel after Italy entered World War II against the United Kingdom and her Allies . The banner of Emperor Hirohito of Japan was removed from St. George 's chapel when Japan entered World War II in 1941 , but that banner and the Japanese monarch 's knighthood were restored by Elizabeth II in 1971 , at which time he made a state visit to the United Kingdom . The Emperor was particularly pleased by the restoration of his banner as a Knight of the Garter . 
