B
The problem was about discrimination and segregation
While it could be from literally anywhere, I'd assume most of them came from the Soviet Union, Germany, France, and Poland, along with plenty of other smaller countries like Austria, Hungary, and even Greece.
Answer:
World War I popularized the use of the machine gun—capable of bringing down row after row of soldiers from a distance on the battlefield. This weapon, along with barbed wire and mines, made movement across open land both difficult and dangerous. so trench warfare was born
Explanation:
Answer:
Assassination of <u>Archduke</u><u> </u><u>Franz</u><u> </u><u>Ferdinand</u>