Military records featuring 90 million Americans who have fought in wars from the 1600s through the American Civil War to Korea and Vietnam have been brought together online.

The huge collection of documents, which includes draft registration cards, photographs, prisoner of war records and news reels, is the work of family history website Ancestry.com.

It hopes to help millions of Americans uncover their ancestors' pasts through their military records, and to shed a little light on the nation's history as it marks Memorial Day on 28 May.