"Remember Pearl Harbor" became the motto of our war against Japan and was echoed across the country. It appeared on envelope covers, comic books, window decals, in newspapers and even on patriotic pins. Join in this remembrance of the war against Japan by purchasing this propaganda pin. The National WWII Museum, which opened June 6, 2000, celebrates the American spirit, the teamwork, optimisn, courage and sacrifice of the men and women who won World War II.