PRI's The World Published by PRI's The World The day tanks changed war forever Listen Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/663699/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend One hundred years ago Thursday, tanks went into battle for the first time. These giant armored killing machines have been a central feature of combat ever since.