Hastily built at the onset of World War II to stop German U-boats from taking their toll on Allied shipping, the 110-foot wooden subchasers were the smallest commissioned warships in the U.S. Navy yet they saw as much action as ships ten times their size. In every theater of war these “expendable” work-horses of the fleet escorted countless convoys of slow-moving ships through submarine-infested waters, conducted endless mind-numbing anti-submarine patrols, and were used in...