Flag of Hong Kong Kong was granted on 21 January 1959 by the College of Arms in London. The Hong Kong flag was revised in the same year to feature the coat of arms in the Blue Ensign flag. This design was used officially from 1959 until Hong Kong's transfer of sovereignty in 1997. Since then, the colonial flag has been appropriated by protestors, such as on the annual 1 July marches for universal suffrage, as a "symbol of antagonism towards the mainland", along with a blue flag featuring the coat of arms, used by those advocating independence. Before Hong Kong's transfer of sovereignty,
British Forces Overseas Hong Kong internal threats. The greatest test was in 1941, when Japanese forces invaded Hong Kong, leading to the 44-month-long Japanese occupation of Hong Kong. Internal Security was the responsibility of the Hong Kong Government, in particular the Royal Hong Kong Police. It was supported by British Forces in Hong Kong should it be called upon to do so. During the Hong Kong 1967 riots, in which 51 people were killed, the British garrison supported the Royal Hong Kong Police in quelling the disturbance. Until 1995, the safety of much of the Sino-Hong Kong border was the responsibility of the British forces