A ruler who adopted the longbow by creating a culture of archery thus effectively armed a large segment of his population, which in turn created an opportunity that a usurping noble with an eye on the Crown could exploit. Such a noble could organize effective rebellion against his ruler by utilizing the large number of citizens with the human capital required for proficient use of the cheap and easy-to-produce weapon. A ruler therefore had to be confident in his political security to be willing to adopt the bow.This explanation is of course wrong, as it was entirely due to our greater manly virtue and fortitude.
Modern analogues are left to the reader.
