I haven't heard that term when relating to the US Navy. But in the Royal Navy SDG is a scubadiver
submersible boat
The term "NAR" doesn't refer to a Navy ship - it's the standard Navy acronym for Naval Air Reserve.
China has the largest if you count by "tonnage", although this does not automatically mean they have the most "powerful" navy. The US Navy is the most powerful in Asia, although it itself is not an Asian country.
The (US) Navy Cross is an award (medal) of the US Navy. An "aerographer" is an individual that study's the air or atmosphere.
It's not HAI, it's HA1. It means Hospital Apprentice 1st Class.
SEa Air and Land
submersible boat
Landing Helicopter Assault
The term "NAR" doesn't refer to a Navy ship - it's the standard Navy acronym for Naval Air Reserve.
carpenter's mate first class
Possibly a Flight Engineer
The US Navy SEALS is a Special Operations Group of the US Navy
China has the largest if you count by "tonnage", although this does not automatically mean they have the most "powerful" navy. The US Navy is the most powerful in Asia, although it itself is not an Asian country.
Not sure but I would think the NAVY
In 1798, the U.S. Navy and U.S. Marine Corps were created
The US Navy.
The US Army is not part of the US Navy . EDIT: The Marine Corps is technically part of the Navy