World War I, also known in its time as the "Great War" or the "War to End all Wars", was an unprecedented holocaust in terms of its sheer scale. Fought by men who hailed from all corners of the globe, it saw millions of soldiers do battle in brutal assaults of attrition which dragged on for months with little to no respite. Tens of millions of artillery shells and untold hundreds of millions of rifle and machine gun bullets were fired in a conflict that demonstrated man's capacity to kill each other on a heretofore unprecedented scale, and as always, such a war brought about technological innovation at a rate that made the boom of the Industrial Revolution seem stagnant.

The arms race before the war and the attempt to break the deadlock of the Western and Eastern Fronts by any means possible changed the face of battle in ways that would have previously been deemed unthinkable. Before 1914, flying machines were objects of public curiosity; the first flights of any account on rotor aircraft had been made less than 5 years before and were considered to be the province of daredevils and lunatics. By 1918, all the great powers were fielding squadrons of fighting aircraft armed with machine-guns and bombs, to say nothing of light reconnaissance planes. Tanks, a common feature on the battlefield by 1918, had not previously existed outside of the realm of science fiction stories written by authors like H.G. Wells. Machine guns had gone from being heavy, cumbersome pieces with elaborate water-cooling systems to single-man-portable, magazine-fed affairs like the Chauchat, the Lewis Gun, and the M1918 BAR. To these grim innovations were added flamethrowers, hand grenades, zeppelins, observation balloons, poison gas, and other improvements or inventions that revolutionized the face of warfare.

The Weapons of World War I analyzes the technological advancements in weaponry that produced the deadliest conflict in history up to that time.