Millions of diary entries describing life during World War 1 are going to be put online.
The pages describe what life was like for soldiers fighting on the front line in France and Flanders.
The National Archives are publishing the diaries on the internet to mark a hundred years since the start of World War 1.
The first 1,944 diary entries will go online today. When the website is complete there will be 1,500,000 pages!
William Spencer from The National Archives said: "Making the diaries available online allows people across the world to discover the daily activities, stories and battles of each unit for themselves."