Which were the methods used by the US government to ensure public support for the World War I?
One of the primary means of ensuring public support was the formation of a Committee on Public Information eight days after the formal declaration of war. Journalists, photographers, and artists were encouraged to spread information about the war in a positive mode. The committee promoted saving food and fuel and the sale of war bonds to support the war effort. The committee promoted the idea that anything German was tantamount to disloyalty to the American cause. For that reason, German Measles were called "liberty measles," dachhunds became "liberty pups," and that most German of dishes, sauerkraut became "liberty cabbage."
Additionally, the Espionage Act of 1917 and the Sedition Act of 1918 provided severe punishment for attempting to interfere with the war effort or distributing literature or materials abusive about the U.S. Government or its armed forces. Also, the Lever Food and Control Act created a U.S. Food Administration which encouraged Americans to observe meatless Tuesdays; wheatless Wednesdays, and porkless Saturdays, all in an effort to garner support for the war. Finally, Americans were encouraged to plant "victory gardens" to save food and promote the effort.