The British Admiralty had secretly subsidized her construction and she was built to Admiralty specifications with the understanding that at the outbreak of war the ship would be consigned to government service. As war clouds gathered in 1913, the Lusitania quietly entered dry dock in Liverpool and was fitted for war service. This included the installation of ammunition magazines and gun mounts on her decks. The mounts, concealed under the teak deck, were ready for the addition of the guns when needed.
On May 1, 1915, the ship departed New York City bound for Liverpool. Unknown to her passengers but probably no secret to the Germans, almost all her hidden cargo consisted of munitions and contraband destined for the British war effort. As the fastest ship afloat, the luxurious liner felt secure in the belief she could easily outdistance any submarine. Nonetheless, the menace of submarine attack reduced her passenger list to only half her capacity.
On May 7, the ship neared the coast of Ireland. At 2:10 in the afternoon a torpedo fired by the German submarine U 20 slammed into her side. A mysterious second explosion ripped the liner apart. Chaos reigned. The ship listed so badly and quickly that lifeboats crashed into passengers crowded on deck, or dumped their loads into the water. Most passengers never had a chance. Within 18 minutes the giant ship slipped beneath the sea. One thousand one hundred nineteen of the 1,924 aboard died. The dead included 114 Americans.
Coming on the heels of the Titanic, the sinking of the Lusitania was another shock to Britain and America; although Titanic has achieve pop-cultural status, the Lusitania disaster was of far greater historical importance.
The sinking enraged American public opinion. The political fallout was immediate. President Wilson protested strongly to the Germans. Secretary of State William Jennings Bryan, a pacifist, resigned. In September, the Germans announced that passenger ships would be sunk only with prior warning and appropriate safeguards for passengers. However, the seeds of American animosity towards Germany were sown. Within two years America declared war.
And the world was never the same again.