Tanks were the first armored fighting machine to be used on the battlefield. These "land ships", as they were first called, were championed by Head of the British Admiralty Winston Churchill. Adapted from an American tractor with caterpillar tracks, the machine was designed in secrecy to break through the heavily fortified trenches and offer protection for troops that were being mowed down by heavy artillery.

While most people think the Blitz originated in WWII, the truth is that the first Blitz happened during WWI. Bombs were delivered from giant airships designed by Count Ferdinand von Zeppelin, who got his inspiration when he was a Germany Army observer in the US during the Civil War and rode in a hot air balloon for the first time. These lighter than air superstructures, two times longer than the Statue of Liberty is high, measured their flights in hundreds of miles when pioneering aviators measured their success in hundreds of yards.

The Atlantic became a killing field as German submarines took on the might of the dominant British Navy. The stealth and silent killers were able to sink 5,200 ships by war's end, and nearly brought Britain to its knees. But in their frenzy of attacks, the Germans sink the US passenger liner Lusitania, killing nearly 2,000 on board. American outrage helped President Wilson get Congress to finally agree to enter the war. In the end, the Allied Atlantic blockade forces Germany to surrender, but the submarine was established as an effective military weapon.