Going to the Wars: The Experience of the British Civil Wars 1638-1651 by Charles Carlton is an academic study of individual soldier's experiences during the English Civil Wars, rather than a more sweeping type of military-inclined history, free courtesy of publisher Taylor & Francis' Routledge imprint, which produces excellent language learning textbooks, by the way (couponable @ Kobo).
This has quoted review praise from History Today and the Journal of Military History, but a couple of the customer reviews note some inaccuracies in a few of the backgrounder facts.
Currently free @
Amazon UK. This is very likely a glitch freebie, and previous Routledge such didn't make it across the pond in either direction, but if you like, here's some linkage to the
main store for your price-drop check convenience.
Description (cribbed from a paper edition, since the e-book version rather unhelpfully just says that this was first published in 2004 and that Routledge is a Taylor & Francis company)
In the 1640s, thousands of young men in the British Isles set off to fight in the Civil Wars, full of enthusiasm and commitment to the cause. They were soon to be disillusioned. Accustomed to a relatively peaceful and secure way of life, the realities of battle - the mental strain, physical exhaustion, loneliness and violence - were devestating.
This book studies the British Civil Wars from the perspective of those who fought them, to argue that the events described by G.M. Trevelyan as "the most important happening in our history" was also the most destructive.