what is the last mentioned one?
A submarine (or sub) is a watercraft capable of independent operation underwater.
Submarine
A submarine (or sub) is a watercraft capable of independent operation underwater. 
when was the last year they made silver nickels UNANSWERABLE who is jefferson nickel? The Jefferson nickel has been the five-cent coin struck by the United States Mint since 1938. what is the cent's design? The 1987 modification saw the sharpening of Jefferson's hair and the details of Monticello. was there any redesigning of the front side of the coin? Yes, the design for the nickel debuting in 2006 was designed by Franki. what change did the wwii bring to this minting? With the entry of the United States into World War II, nickel became a critical war material, and the Mint sought to reduce its use of the metal. how did the war affect asia? The Kuomintang (KMT) party in China launched a unification campaign against regional warlords and nominally unified China. who were the allies that gained momentum? United States, Australia, New Zealand and Pacific Islander forces. were there any use of high tech weapon in the war? Yes, guided missiles, aircraft carriers and submarines.
wiki:19655125
Submarine [SEP] Introduction
A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. It is also sometimes used historically or colloquially to refer to remotely operated vehicles and robots, as well as medium-sized or smaller vessels, such as the midget submarine and the wet sub. Submarines are referred to as "boats" rather than "ships" irrespective of their size. Although experimental submarines had been built before, submarine design took off during the 19th century, and they were adopted by several navies. Submarines were first widely used during World War I (1914–1918), and are now used in many navies large and small.