"To be prepared for war is one of the most effectual means of preserving peace." -George Washington
Visit the monuments and memorials for the efforts of peace keeping by the great leaders of this great nation.
There are several monuments to see in Washington, D.C. Some your group may want to visit include Museum of American History, US Holocaust Museum, Washington Peace Monument, US Naval Monument, World War II Memorial, Vietnam War Memorial, Korean War Memorial, Lincoln Memorial, and FDR Memorial.
While your group is on the field trip they may want to stop by the White House for a photo opportunity. Other great tour opportunities are the Capitol Hill Tour and the Pentagon Tour. Be sure to stop by Arlington Cemetery, you may be able to visit the Tomb of the Unknown Soldier.