The Jeremiah O'Brien is the product of an emergency ship building program of WWII that resulted in the construction of more than 2,700 Liberty ships. Designed as cheap quickly built simple cargo steamers, the,liberty ships formed the backbone of a massive sea lift of troops, arms and material to every theater of the war. The ship made war time voyages between the east coast, Canada and the United Kingdom,to South America, Australia and the Philippines. From June until December 1994,O'Brien made 11 trips between the United Kingdom and Normandy in support of the D-Day invasion,including a trip from Belrast, lrelend to Normandy with troops from Patton's Fifth Division.