Typically the United States is said to have declared war on Great Britain in 1812 because of the Royal Navy's impressment of American seamen and the British desire to create an Indian buffer state. An Englishman William Cobbett, described the real cause of the conflict: 'There seemed to be wanting just such a war as this to complete the separation of England from America; and to make the latter feel that she had no safety against the former but in the arms of her free citizens.' Regardless of the reasons, however, on 4 June 1812, U.S.President James Madison, asked Congress to declare war.

The regimental or battery set of colours was more than simply a unit designation, issued for the ease of a commander in identifying his units in the field. It was the very symbol of the regiment; it was its heart, the thing that drew its members together. As such it was fiercely defended in action, where it flew in the centre of the line. Complemented by numerous illustrations, including eight full page colour plates by Rick Scollins, this book by Philip Katcher provides a fascinating examination of the Union flags of the American Civil War (1861-1865).