Why do everyday people risk life and limb by going to fight in deadly combat? To put your body and mind in the midst of flying arrows or shrapnel, to risk the hacking of axes or the sights of a sniper, to sail on an ancient bireme or WW2-era battleship when there's a good chance you won't be coming out of it alive, is mortally terrifying.

We explore the motivations of the men and women who often gladly take up arms, from excitement to loyalty, radicalisation to brotherhood.

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