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Barbed wire was initially created to pen livestock in the 1800s, barbed wire was quickly used for other purposes. In the early 1910s, they were creating mass production of barbed wire; then they used it in World War I and it was considered a low level technology. Millions of kilometers of barbed wire were laid by both countries.

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Machine guns were known throughout WWI and turned out to be a global symbol of the war later on. These guns could shoot around 500-600 rounds per minute. Older models were heavy, multi-part guns that needed teams of 4-8 to work and assemble, newer models needed only a few to set up and they became a lot more sleek and mobile. These machines killed upwards of 85% of soldiers during the war.

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The Submarine was used by the Germans to be able to strike the British Navy. The British "owned" the seas so the German's used submarines to rule below the surface. An issue with the Submarines were that sometimes the Germans couldn't tell who the boat belonged to. This caused the sinking of many ships who weren't the enemy. The Germans also called the submarines U-boats short for Underseeboot because they were quite literally under the sea. At the end of the war the Germans had built 334 U-boats and 226 under construction.

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The airplane was invented by the Wright Brothers in 1903. These were made of wood and canvas. The first use of airplanes in WWI was for spying on the enemy. Pilots soon found that the best way to shoot down an enemy plane was with a mounted machine gun. The planes used in WWI were much slower than the planes used today.

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Total War was the ideology that every citizen of every country must work as hard as they can for the benefit of the war effort. Anyone who was not directly serving was to stay at home and gather supplies, store food, and support the war regardless of their true feelings about it.

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Shell Shock is a post-traumatic disorder caused by major stress, panic, paranoia, and being scared,It is reaction to the intensity of the bombardment and fighting, Symptoms included palpitations, fear of fainting, feelings of suffocation, throat constriction, depression, insomnia, nervousness, uncontrollable diarrhea, loss of memory, loss of self-confidence and self-control, and terrifying dreams, but some had a more severe case that could cause blindness, loss of hearing, facial and body tics, convulsive movements similar to epileptic fits, and limbs that could not move.

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Trench foot was an infection that was caused by cold, wet and unsanitary conditions. Since the men would stand for hours in terrible conditions their feet would go numb and turn red or blue. Back then the only treatment for trench foot was to dry your feet and change your socks. Men were on orders to change their socks every once in a while. By 1915 soldiers were acustumed to carrying three more pairs of socks with them. If not treated well trench foot could turn gangrenous (the tissue could die) and result in amputation.

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Living in the trenches was already horrendous, with the common threat of lice and shell shock. To add to that, rats were a huge problem too. According to the video, one pair of rats could produce 880 offspring yearly. This caused the trenches to be infested with rats, and the rats took advantage of that. They evolved to be the size of cats and could often be seen on dead bodies. Despite all of the adverse facts about rats, they also proved helpful in some cases. Large groups of rats would hear incoming attacks and run away, alerting the soldiers before they knew. The way that rats ate the war victims was horrible; they started at the eyes and worked their way through the mouth, and exiting near the liver.

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Flamethrowers were used by the Germans in WW1, trying to force the enemy from their trenches. If a soldier operating one was caught by the British, they were immediately executed, instead of being captured. Flamethrowers from this era spewed fuel, which was then ignited, becoming a blazing inferno. About 650 attacks using Flamethrowers were launched in WW1. They were added to tanks later on. However flamethrowers were only useful at short range.

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- Battleships of the era found it difficult to hit their targets. Both the target and the gun were constantly moving.
- The British Dreadnoughts forced Germany to pour huge sums into its own navy, causing financial problems.

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97% of men in war got lice. Lice left big red bite marks and made people very itchy. There really was no way to get rid of them so they would continue to spread amongst everyone. They would have to constantly change and wash their clothes. This impacted them a lot because the men would be distracted by the bugs.

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Poison gas was first used in 1915 by the Germans. At first they used cylinders and wind, and later the gas would be launched in artillery shells. The gas attacked the respiratory system and caused burning sensations. People choked and died as a result of suffocation. It also caused blistering skin, vomiting, sore eyes, internal and external bleeding. Death could be as quick as in a day and take up to 5 weeks. 79,000 soldiers died during the war as a result of poison gas and millions were affected by it.

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Shell shock is the old name for PTSD. Soldiers were reported to have teeth chattering long after the shells have gone and multiple people needed to hold them down on the stretchers due to their shock.

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The airplane was invented by the Wright Brothers in 1903, just 11 years before the start of World War I.
Airplanes were used for spying other countries and later on were also used for Aerial Combat
Early Airplanes were made of Wood and Canvas and were a lot slower then modern day planes only reaching top speeds of just over 100 miles per hour.

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Artillery was used by all sides during ww1. the purpose of artillery was to enemy encampments and provide suppressive fire. The German field artillery is said to have fired 220 million shells during the war.

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Tanks were a revolutionary technology which were huge slow armored vehicles. The mark-1 only reached up to 4 mph, it was equipped with machine guns and canons, they were also lightly armored only having up to 12mm of armor, being able to get shot down by small arms. It was used on the front lines to be used as a portable ground defense and offense. Going forward in time, tanks had to be judged on 3 sections, firepower, mobility, and armor.