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.
https://www.history.com/this-day-in-history/germans-introduce-poison-gas
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Answer: It is the last three answers don't choose the top one. Hope that helps
Explanation:
I did this assignment when I was in 6th grade.
b) “Before ‘Bloody Sunday’”
Bloody Sunday refers to the massacre of January 22nd, 1905 in St Petersburg, Russia. Unarmed demonstrators marching to present a petition to Tsar Nicholas II of Russia in the Winter Palace were attacked by the Imperial Guard.
The massacre on Bloody Sunday is thought to be the origin of the active phase of the Revolution of 1905.
Over 60 countries in South America
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