1. Agenda Warm Up WWI Video Review Discussion: Modern Technology of WWI
Zimmerman Telegram Primary Document
HW: Quick Quiz next class on Triple Alliance and Triple Entente.

2. What countries made up the WWI alliances?
Warm Up
What countries made up the WWI alliances?
Triple Alliance Triple Entente

3. The World at War

4. Technology of War Airplane Tanks
Initially used as reconnaissance planes.
After the mounted machine gun was invented they could position guns through the prop. (Combat planes)
Tanks
United Kingdom develops this to run over the trenches. Armor-plating helps in “no-man’s land”

5. More Technology of War Machine Gun Zeppelin
Utilized by all sides, one man now had the power of forty soldiers.
Battle of the Somme in 1916, over 1 million deaths.
Zeppelin
Used extensively by Germany in WWI.
Quiet, high altitude, and ability to complete bombing raids.
Huge flammable blimp, no smoking…

6. More Technology of War Mustard Gas Flame Thrower
At first, only used when appropriate.
Dangerous: wind direction, troop movements.
Initial gas masks utilized cloths soaked in urine to repel the gas.
Flame Thrower
Used to chase people out of a trench, then open fire with machine guns.

7. More Technology of War The Electric War
1890s, Westinghouse purchased AC(Alternating Current) technology from Nikola Tesla.
Went against Edison’s DC(Direct Current) power supply. (Good for short distance)
Alternating Current was seen as more efficient over long distances.
During the War
Tesla developed a “radar” based system for torpedoes, but it was not adopted.

8. A Global Conflict
Early 1915, Italy supports the Allies (Triple Entente)
Gallipoli Campaign-
Take the Dardenelles Strait so a supply route is established to Russia.
It lasts nearly 10 months, with no success.
Allied armies (Triple Entente) manage to control the Middle East from the Turks.

9. Using the Colonies
Imperial Nations such as Britain and France would use the people they forced into servitude to fight in the Great War.
Some volunteered, hoping for independence.

10. The United States Enters War
1915, unrestricted submarine warfare would lead to the sinking of the passenger ship Lusitania.
128 Americans killed.
While many were outraged, the ship was carrying war supplies.
1917, Germany sends Zimmerman telegram to Mexico. “Keep America occupied, so they don’t declare war on Germany.”

11. Zimmerman telegram caused the US to enter war on the Allied side
Zimmerman telegram caused the US to enter war on the Allied side. (Triple Entente)
Americans that wanted to stay out of war joined in droves to fight in the conflict. (They still had the romanticized idea of war)