Take the following as truth: It is possible, though no such attack took place, writes historian John Julius Norwich in his forthcoming book Shakespeare's  The Great Plays and the History of England in the Middle  1137-1485 . Norwich, who calls the command the darkest stain on [the historical Henry's] reputation, says that so many of Henry's men refused to obey his order that he was at last obligated to designate 200 of his own archers specifically for the task.
Then the following statement: "Norwich says Henry's men wouldn't obey when he told them to attack." is true, false, or inconclusive?
Answer: Inconclusive