What do the 56 granite columns represent at the world war 2 memorial?

The 56 granite columns at the World War II Memorial represent the 48 U.S. states, the District of Columbia, and the U.S. territories that were involved in the war. Each column is inscribed with the name of a state or territory, symbolizing their contributions and sacrifices during the conflict. The design serves to honor the collective efforts of the nation in achieving victory during World War II.