There is not a khaki dress. USN Officer Khaki is basically the same as the BDU of old if I'm not mistaken.
Service Khaki - Worn in Summer/Winter for office work, watchstanding, liberty, or business ashore when prescribed as uniform of the day.
Working Khaki - Worn when other uniforms would be unsafe or become unduly soiled.
Winter Blue - Worn in winter for office work, watchstanding, liberty or business ashore when prescribed as uniform of the day.
Winter Working Blue - Worn when other uniforms would be unsafe or become unduly soiled.

I think after DEC 2010 you'll be able to better see the uniform relations between branches with the new NWU now that the USN is finally consolidating their uniforms.
The MCCUU, ACU, ABU, NWU, and ODU will fill the same roles for each branch I believe.

Quote Originally Posted by Larry124 View Post
I don't understand.
If see a General on a TV show like Face the Nation or Meet the Press he’s in BDU's.
Often as not Ill-fitting to my eyes.
USA or USAF or USMC the same.
A USN Admiral at least usually wears tan Dress (why not not blue)?
Are Washington DC or New York City or Atlanta (or the News Media in general) now considered to be “in the field”?