This is a trio of books by Bernard Cornwell; the man seems to be not only an aficionado of historical warfare but has an innate ability to transport the reader to the period and location in the books. Now, granted, this is historical fantasy/fiction if it is anything but you can't help but feel the fear, the tension the characters experience, the whirring of thousands of bowstrings, the slapping noise they make when they make contact with armor or flesh, the ringing of swords, the screams of dying horseflesh, the stench of unwashed bodies in enclosed spaces, the terror of being pursued relentlessly, hopelessly outnumbered...
Whew, I went back there (again) for a brief moment. Ok...if you love medieval anything, give these books a read. The timeframe is during Edward III's reign and his exploits in the Hundred Years' War, the Battle of Crecy heavily featured. The descriptions of the conditions of the field, the battle, the adversaries, strategies- all very engrossing.
They are as follows:
Harlequin (aka The Archer's Tale in the U.S.)
Vagabond
Heretic
I shouldn't be surprised if you go on to read his other works such as:
Azincourt (standalone novel set during Henry V's reign and his part in the Hundred Years' War, specifically with his march across France to get to Calais and the Battle of Agincourt)
Saxon Series (deals with the Kingdom of Wessex during Alfred the Great's reign)
Warlord Chronicles (another take on the Arthurian legend)
He's also the prolific writer of all the Richard Sharpe books- funny, I used to read them as a teen but never knew the author's name, or rather forgot it I suppose. LOL
Anyhow, after reading these books I almost wanted to become an archer!!! I know, I know...blasphemous thoughts for a knight to have, but I rooted for them nonetheless as they laid to waste the flower of French chivalry, and I suspect you will too. Enjoy, if you've a mind for it!