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 HA1 and means Hospital Apprentice 1st Class.
I haven't heard that term when relating to the US Navy. But in the Royal Navy SDG is a scubadiver
United States.
The hai
submersible boat
SEa Air and Land
Indian navy is six th largest in the world
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
Kleiner Hai is German for "small shark"