Liberty ships were essential parts of our response to World War II. Here what mission they accomplished, and why they were so ...

During World War II, U.S. Navy cruisers filled a vital niche between the powerful but slow battleships and the less powerful but fast destroyers.

Sterne started volunteering eight years ago with Project Liberty Ship, where he gives tours and assists with maintenance on the S.S. John W. Brown, a World War II ship launched in 1942 from Baltimore.