When HMS Dreadnought was launched in 1906, she immediately rendered every other battleship in the world obsolete and started the 20th century's first arms race. Constructed from thousands of tons of steel and armour plate, these new leviathans took on the generic name of 'dreadnoghts' and were the first modern battleships. They were both a technical marvel and a stirring symbol of national might. Discover how the personal vision of a British Admiral brought about an entire fleet of these superweapons of their era, and see how the new dreadnoughts were put to the ultimate test on the high seas during the First World War in such epic clashes as the Battle of Jutland.