The US entered WWI in 1917 and needed to rapidly raise and equip an army. A draft was instituted that selected men ages 21-30. Nearly 2.8 million Americans were drafted and 2 million volunteered. African Americans faced discrimination but over 250,000 were still drafted. Women entered non-combat military roles for the first time. The government encouraged food conservation and raised funds through war bonds. The economy boomed as industry ramped up production and new migrants filled jobs. However, dissent was suppressed through propaganda and new laws restricting free speech.