I will give brainliest to who helps

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.

porter is writing economic history because he is focusing on the cost of developing vaccines.

a)the court decides which cases it will hear