The Prince of Wales and Prince Harry will be going aboard the HMS Bulwark as part of a series of memorial events to mark the Gallipoli Campaign centenary events in Turkey.
On 24 April, the royals will meet 15 descendants of the British troops on Royal Navy flagship, who fought in one of the Allies' greatest disasters in the First World War.
It was Winston Churchill's plan to create a new war front to capture the Ottoman capital of Constantinople – now Istanbul. But the allies failed in their naval and land campaign to secure the sea route to the Ottoman Empire as Ottoman soldiers fought back, which was later hailed as of the empire's greatest victories.
More than 130,000 lives were claimed including 43,000 British, 15,000 French, 8,700 Australians, 2,700 New Zealanders and 1,370 Indians.
Prince Charles and Harry will later visit the Helles Memorial to attend the Commonwealth and Ireland memorial service, and finally the French memorial service at Morto Bay.
On Anzac (the Australian and New Zealand Army Corps) day, which commemorates the withdrawal of the allied invasion, Charles will give a reading and lay a wreath at a service on the peninsula before meeting Australian visitors for breakfast.