1942 15th. August Operation Pedestal.

Operation Pedestal was a British operation to get desperately needed supplies to the island of Malta in August 1942, during the Second World War. Malta was the base from which surface ships, submarines and aircraft attacked Axis convoys carrying essential supplies to the Italian and German armies in North Africa. In 1941–42, Malta was effectivelyunder siege, blockaded by Axis air and naval forces. To sustain Malta, the United Kingdom had to get convoys through at all costs. Despite serious losses, just enough supplies were delivered for Malta to survive,  although it ceased to be an effective offensive base for much of 1942. The most crucial supply was fuel delivered by the SS Ohio, an American-built tanker with a British crew. The operation started on 9 August 1942, when the convoy sailed through the Strait of Gibraltar. 

The convoy is also known as the "Battle of Mid-August" in Italy and as the Konvoj ta' Santa Marija in Malta. The arrival of the last ships of the convoy on 15 August 1942, coincided with the Feast of the Assumption (Santa Marija) and the name Santa Marija Convoy or Sta Marija Convoy is still used. That day's public holiday and celebrations, in part, celebrate the arrival of the convoy. The attempt to run fifty ships past bombers, E-boats, minefields, and submarines has gone down in military history as one of the most important  British strategic victories of the Second World War. However, it was at a cost of more than 400 lives, with only five of the original 14 merchant ships reaching the Grand Harbour.