Hey There!
The breakdown of the wartime alliance between the U.S. and the Soviet Union, then the responsible party for starting the Cold War would be the Soviet Union, because of the Soviet Union's wartime espionage program against the United States.
Create the missouri compromise
The Aztecs focused on agricultural innovations, while the Incas focused on agricultural innovations.
Soldiers also made dugouts and funk holes in the side of the trenches to give them some protection from the weather and enemy fire. The front-line trenches were also protected by barbed-wire entanglements and machine-gun posts. Short trenches called saps were dug from the front-trench into No-Man's Land.
