The Hundred Years War was a military and political conflict that lasted from 1337 to 1453.  The major participating countries in the war were England and France.  Most of the war was fought on French soil.  There are many underlying reasons for the war, but the immediate cause of the war started with the King of France confiscating English territory in France, primarily the duchy of Aquitaine.  Philip IV was the king of France when the war began and Edward III was the king of England.  With over a hundred years of on - and - off conflicts between the two countries, there were many decisive battles and aspects of warfare that changed these countries forever.  The war resulted in massive changes in both countries, leading to major adjustments of their governments.  

There are numerous underlying causes for the war between England and...