More about... Operation Jaywick

Introduction
Operation jaywick is a special operation undertaken In world war 2. On september 1943, 14 commandos and sailors led by Ivan Lyon from the Z special unit raided japanese shipping in Singapore Harbour, sinking seven ships.

Background
 In 1943, a 28-year-old British officer, Captain Ivan Lyon (of the Allied Intelligence Bureau andGordon Highlanders), and a 61-year-old Australian civilian, Bill Reynolds, devised a plan to attack Japanese shipping in Singapore Harbour. Commandos would travel to the harbour in a vessel disguised as an Asian fishing boat( which is later named Krait). They would then use collapsible canoes to attach limpet mines to Japanese ships.

Attack
In mid-1943, the Krait travelled from a training camp at Broken Bay, New South Wales to Thursday Island. Aboard was a complement from Z Special Unit of three British and eleven Australian personnel, comprising:

• Major Ivan Lyon (Mission Commander)
• Lieutenant Hubert Edward Carse (Krait's Captain)
• Lieutenant Donald Montague Noel Davidson
• Lieutenant Robert Charles Page
• Corporal Andrew Anthony Crilley
• Corporal R.G. Morris
• Leading Seaman Kevin Patrick Cain
• Leading Stoker James Patrick McDowell
• Leading Telegraphist Horace Stewart Young
• Able Seaman Walter Gordon Falls
• Able Seaman Mostyn Berryman
• Able Seaman Frederick Walter Lota Marsh
• Able Seaman Arthur Walter Jones
• Able Seaman Andrew William George Huston

On 13 Aug 1943, Krait left Thursday Island for U.S. naval base at exmouth Gulf, western Australia, refuel and repairs were undertaken.

On 2 sept 1943, the Krait left the Exmouth Gulf and departs for Singapore. the team's safety relies on the disguise of the boat as well as the men's appearance. The Krait arrived off Singapore on Sept 24. That night, six men left the boat and paddled to a cave near the harbour. On night of 26 sept, the men paddled into the harbour and planted mines on the ships and they exploded. The men reached back safely and there was no casualities or losses. Later an installment, operation Rimau, but some men were captured and killed.

Relation to Elizabeth Choy

The Japanese in Singapore are surprised by the raid. they did not expect a raid to come from Australia. Since  the raid started in Australia, the japanese suspected that local people in singapore supplied them the knowledge of carrying out the raid. The kempeitai, japanese military police arrested 57 civilians and civilian internees( including elizabeth choy) but no one of the 57 people had participated in operation Jaywick, nor knew any knowledge of it. 

source:wiki (operation jaywick, double tenth incident)