Commonwealth and Ireland commemorations of the Gallipoli Centenary take place at the Cape Helles Memorial in Turkey on April 24th 2015.
Capes Helles, at the tip of the Gallipoli peninsula, was the site of the main Allied landing by British forces, including soldiers from Ireland, on April 25th 1915.
Australian and New Zealand troops went ashore further north on the beaches now known as Anzac Cove.
The purpose-built Anzac Commemorative Site, dedicated in the year 2000, hosts the Centenary Dawn Service on April 25th 2015.
Visitor numbers are restricted because of limited space. Australia and New Zealand held ballots to allocate tickets.
The Prince of Wales and Prince Harry will attend the ceremonies in Turkey on April 24th and 25th.
A summary of international and national events can be found here on Centenary News.