This picture, second in a series of three, shows the explosion of a hand grenade in a bunker of loyalist gunners at the front line of the battlefield in Burgos, Spain, Sept. 12, 1936. (AP Photo)
This picture, second in a series of three, shows the explosion of a hand grenade in a bunker of loyalist gunners at the front line of the battlefield in Burgos, Spain, Sept. 12, 1936. (AP Photo)