WWI is one of the most important events in history, but how much do you know about it? (21 Photos) By: Bob In: Facts, History, Interesting Mar 24, 2016 1661 Liked! 29 Disliked 0 1 In an effort to increase the U.S. Army’s numbers, a draft was employed by the government in 1917. Around 2.7 million men were drafted, and 1.3 million volunteered. Like this post? 1661 Liked! 0