On this day in 1916, Germany responds to a demand by U.S. President Woodrow Wilson by agreeing to limit its submarine warfare in order to avert a diplomatic break with the United States.
On April 22, 1915, German forces shock Allied soldiers along the western front by firing more than 150 tons of lethal chlorine gas against two French colonial divisions at Ypres, Belgium. This was the first major gas attack by the Germans, and it devastated the Allied line.
Ferdinand and Sophie departed their estate for Bosnia-Herzegovina on June 23. Having received multiple warnings to cancel the trip, the archduke knew that danger potentially awaited them not taking the warning they then got assassinated
In 1914, 400,000 men ended up going into battle without any arm. But in actuality, Russia’s Imperial Troops were actually pretty well trained and equipped. The only problem came from the army’s inability to transport troops to enemy territory in a short amount of time.
May 7, 1915, the British ocean liner Lusitania is torpedoed without warning by a German submarine off the south coast of Ireland. Within 20 minutes, the vessel sank into the Celtic Sea. Of 1,959 passengers and crew, 1,198 people were drowned, including 128 Americans.
On this day in 1917, the lethal threat of the German U-boat submarine raises its head again, as Germany returns to the policy of unrestricted submarine warfare it had previously suspended in response to pressure from the United States and other neutral countries.