How did Dr. Seuss help during World War 2?

People like Dr Seuss who was born in March 2, 1904 supported the war by making posters or quotes to give the people who are fighting in the war and supporting the war, courage to the people, it also inspired the people to join the war and also to support it. He began drawing Cartoons in favor of the war against Hitler and Japan. In the end of the WWII, 400 Cartoons was drawn by Dr Seuss between January, 1941, and January 1943.