What Flag Did England Fight Under During the Revolutionary War?

The British Flag today has diagonal red stripes through the diagonal white cross -- this is known as the St. Patrick's Saltire.
... Hemera Technologies/AbleStock.com/Getty Images

During the Revolutionary War, the Kingdom of Great Britain flew a flag not unlike the one flown in Great Britain today, but with some noticeable differences. The flag flown during the war lacked the red diagonal stripes -- the Saint Patrick's Saltire -- that appear on the Union Flag today.

1 The King's Colours Flag

The flag Great Britain used during the Revolutionary War lacked the diagonal red stripes because the Act of Union in 1707 unified England and Scotland -- it excluded Ireland. This flag was called the King's Colours Flag. The St. Patrick's Saltire was added later for Ireland when the new Act of Union was passed in 1800.