The Armys newest ship is a Theater Support Vessel (TSV before called a HSV) was bought with the new Stryker Brigades in mind. To learn more about this ship check out the Ft. Eustis web page
To learn more about the Armys watercraft check this out
I have my doubts. When you think about it, if the Navy trusted the Army there would be no Marine Corps, and if the Army trusted the Navy there would be no ships in the Army.
USNS Shughart T-AKR 295 Large, Medium-speed, roll-on/roll-off ship [LMSR]
The LMSR ships are Large (950 feet long, 106 feet wide, 55,000 long ton displacement), Medium Speed (24 knots), Roll-on/Roll-off (RO/RO) vessels. LMSRs can carry an entire U.S. Army Task Force, including 58 tanks, 48 other track vehicles, plus more than 900 trucks and other wheeled vehicles.