One of the most controversial battles of the First World War started on July 1st 1916, with a massive British-led attack on German positions in the Somme region of Northern France.
Public vigils take place across Britain tonight to reflect on the hours leading up to the start of the Battle of the Somme a century ago.
Descendants of Battle of the Somme soldiers are playing a central role in commemorations at the Scottish National War Memorial in Edinburgh Castle.
The Australian War Memorial is displaying the medals of Private William 'Bill' Jackson VC as part of centenary commemorations marking Australia's role on the Western Front.
Britain will observe two minutes of silence at 7.28 am on Friday July 1st 2016, marking 100 years since the start of the Battle of the Somme.
UK sports stars are backing a Royal British Legion call for sporting groups at all levels to remember their forebears who fought and died at the Battle of the Somme in 1916.
Inspired by the story of his soldier grandfather and the Kashmir Rifles, Andrew Kerr discusses the gruelling East Africa campaign on the centenary of the Battle of Lukigura.
French troops defending Verdun came under renewed pressure in June-July 1916 as the German Army made its closest advances to the town.
A digital archive telling the stories of 175 overseas recipients of Britain's highest award for valour has gone online as part of the UK Government's First World War Centenary programme.
Marine archaeologists from the University of the Highlands & Islands have surveyed the wreck of HMS Hampshire, the British cruiser sunk in June 1916 with the loss of War Minister Lord Kitchener and most of the crew.
Photo exhibitions launched at the Canadian War Museum in Ottawa, ahead of the Battle of the Somme Centenary, highlight the impact of the First World War on Newfoundland and Labrador.
Commemorations are planned at Richebourg in Northern France, marking the centenary of an attack which cost British troops heavy losses on the eve of the Battle of the Somme in 1916.
The US National World War I Museum in Kansas City talks to CN's Patrick Gregory about plans for major expansion of its gallery space.
The Commonwealth War Graves Commission has launched an app for the Battle of the Somme Centenary, helping visitors to locate soldiers' names on the Thiepval Memorial.
The events of the Battle of the Somme as they unfolded in 1916 are told in a new app released by the Royal British Legion and tv historian Dan Snow.
The Western Front Association will be commemorating the Battle of the Somme with a centenary conference in the UK on July 9th 2016.
Centenary News reports from the Orkney Islands on the unveiling of a new memorial commemorating all those who died in the mine explosion which sank HMS Hampshire on June 5th 1916.
More photos taken by Centenary News at the unveiling of the new memorial commemorating all those who died on the cruiser HMS Hampshire when it was sunk off the Orkney Islands in 1916 while taking Britain's War Minister, Lord Kitchener, on a secret mission to Russia.
Britain's War Minister, Field Marshal Lord Kitchener, was killed at sea on June 5th 1916 soon after sailing from Orkney on a secret diplomatic mission to Russia.
General Aleksei Brusilov launched one of Russia's most successful attacks of the Great War on June 4th 1916, advancing against Austro-Hungarian forces in present-day Western Ukraine.
The British Prime Minister David Cameron and the German President Joachim Gauck attended a national remembrance event in Scotland today, Tuesday 31st May 2016.
A commemoration for the Battle of Jutland was held today in Germany at the Naval Memorial at Laboe. The battle is known as Die Skagerrakschlacht in German.
The British Royal Navy marked today's 100th anniversary of the Battle of Jutland with memorial events at Plymouth, Chatham and Portsmouth.
Here are more photos taken by Centenary News at the Royal Navy centenary memorial event held in Portsmouth on the 31st May 2016.
The British and German fleets fought the biggest naval battle of the First World War off the coast of Denmark on May 31st/June 1st 1916.
The ceremony was held in Scotland on Saturday 28th May 2016 - 2 days before the 100th anniversary of the Battle of Jutland.
President François Hollande and the German Chancellor, Angela Merkel, lead France's official commemorations today (May 29th 2016) marking the Centenary of the Battle of Verdun.
As commemorations get underway to mark the Jutland Centenary, a new exhibition examining the battle has just opened at the National Maritime Museum in London.
The General who rebuilt British and Indian forces for the Mesopotamia Campaign after the fall of Kut in April 1916 is discussed by Paul Knight.
Descendants of the Battle of Jutland commanders paid tribute to all those who died in the biggest naval clash of the First World War at a ceremony in London's Trafalgar Square on May 23rd 2016.
Written by Centenary News volunteers:
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