Pulling ships out of the Reserve Fleet was common especially in all the U.S.'s major late-20th century conflicts through the Persian Gulf War. In their retirement, vessels in the Ghost Fleet have been used for all sorts of military and civilian endeavors, from demolition practice to grain storage.The Ghost Fleet has been a point of contention ever since MARAD starting storing ships there in the 1940s. Exposure has taken a toll on the ships themselves, and there's a constant threat that the ships will shed harmful chemicals into the river as nature works on them.