Name the three routes that most of the pioneers traveled?

Three of the Missouri based routes- the Oregon, Mormon, and California Trials. They were collectively known as the Emigrant Trails

Explanation:

this isn't a question and if you're going to list things be kind and use commas.

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.