Answer:
Although during presidency campaign he wasn't supporting the entrance to war, the public opinion changed as three American ships were sunk by Germans, who offered Mexico a military alliance and territories this country lost in earlier wars with the United States.
Step-by-step explanation:
- He asked before the US Congress on April 2, 1917, for United States entry into the war, and four days later Congress approved it.
- At that moment the United States army was rather small., but then they started calling upon volunteers.
- Yet United States entry into the war changed everything, with the arrival of 2.1 million United States soldiers one of the decisive factors for the outcome of the war.