In the United States, over 30,000 women helped in the Army, Navy, Marines, or the Coast Guard. They did this even before they were given the right to vote. In the U.S., the women in the military gave a huge push to the 19th Amendment to get passed. President Woodrow Wilson got won over to the women’s suffrage side because they were very brave. The women served on the front line. They also replaced men in offices and factories. 