Dr. Seuss created political cartoons from 1941-1945 during World War II that dealt with America's reluctance to enter the war and confront Hitler early on. The cartoons addressed issues like isolationism, appeasement of Hitler, and the America First movement. After the attack on Pearl Harbor in 1941, the US declared war on Japan and Germany and fully joined the Allied forces in Europe and the Pacific. Dr. Seuss's cartoons then focused on promoting unity at home, urging support for the war effort through bond/stamp purchases and conservation/rationing of key resources.