Which weapon introduced during world war i would revolutionize battlefield warfare?.

The machine Gun

Explanation: In the course of these four long years, one of the most iconic weapons of World War I was responsible for a massive amount of these statistics. The machine gun revolutionized combat efforts and quickly drove out nations with their horse-drawn carriages into submission.

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.

the installment plan of the 1920s, an arrangement that allowed people to buy what they wanted with a small down payment and pay off the rest in monthly installments, provided americans a way to own what they did not have the money to buy.