The Union Flag (UK), which is the British National Flag, is also popularly  know as the Union Jack. It is called the Union Jack when it is on the Jack Mast at the bow of the ship that is at war. It is also know as the Royal Union Flag in Canada. The flag consist of three Crosses: Saint Andrew for Scotland, Saint Patrick for Ireland and Saint George for Kingdom of England.  The symbol of the Union flag is represented on many other territories and state flags. Order yours today at flag-works.com. Made in the USA