The medal was officially announced om 6th August 1915 for service in minor naval operations and is always issued with a bar:
Persian Gulf 1909 – 1914 – 19th October 1909 – 1st August 1914 awarded to officers and men of HM Ships who were employed in the operations for the suppression of arms traffic in the Arabian Sea / Persian Gulf (including Royal Marines + Royal Indian Navy)
Approx 7217 Bars Issued
Palestine 1945 -48 – 27th September 1945 – 30th June 1948. The qualifying criteria were:
28 days afloat in ships employed on the Palestine patrol against illegal immigration and gun-running, or
28 days afloat in close support of military forces in Palestine, which meant service within 3 miles of any qualifying land area.
Approx 7900 Bars issued
Malaya – 16th june 1948 – 31st July 1960 – Qualifying service was 28 days afloat after 16th June 1948 in ships patrolling off the Malayan coast in support of operations against bandits or one journey in a craft up a river or creek in malaya in close support of operations against bandits.
Approx 7800 bars issued.
Near East – 31st October – 22nd Dec 1956 – (Operation Musketeer) issued for recognised services in the Middle East during this period. Qualifying period was one day spent on a ship employed off the Egyptian coast either in the Mediterranean or Red Sea (or one sortie flown by Naval air crew). This was the last major action of the royal Navy employing aircraft carriers amongst a fleet of 66 major warships and 38 smaller vessels.
Approx 20,500 Bars issues