The major impact of<span> technology on World </span>War<span> I (</span>WWI<span>) was that it made the </span>war<span>much more difficult for the infantry soldiers who </span>did<span> most of the fighting. </span>New <span>technology in the form of machine </span>guns<span> and rapid-fire artillery gave a huge advantage to any army fighting on the defensive in this </span>war<span>.</span>