The following quotes were gathered in Blood Against Blood, a book written by prominent Pentecostal leader Arthur Booth-Clibborn and published in 1916:
"War is hell."
"I cannot fight, for the spirit of war is slain within me."
George Fox, when offered a captaincy
"God is forgotten in war; every principle of Christianity is trampled upon."
"Our religion teaches us that it is better to be killed than to kill."
"Shall Christians assist the Prince of Hell, who was a murderer from the beginning, by telling the world of the benefit or need of war?"
To Booth-Clibborn's quotes, I would like to add one more. This one comes from Anthony Swofford's book Jarhead:
Already, I recognized the incompatibility of religion and the military. The opposite of this assertion seems true when one considers the high number of fiercely religious military people, but they are missing something. They're forgetting the mission of the military: to extinguish the lives and the livelihood of other humans. What do they think all of those bombs are for?