DCguy1999 saidThis begs the question: what about the Coast Guard?
While they were a former branch of the DoD, with the realignment under the Dept. of Homeland Security I don't think many Airmen work with Seamen (exact terminology escapes me) as Airmen deal primary with all things focused towards the "air".
Some airmen may have worked with Coast Guard but I'm sure it's few and far in-between. Perhaps at strategic and operational (think of it as regional and national) levels but not at the lowly tactical (day to day levels).
Sailors (Seamen) work more closely with Coast Guardsmen than with Airmen for self-explanatory reasons; during peacetime, the USCG is organized under the Department of the Treasury given their role for enforcing customs laws and interdicting crime/piracy in our litoral waters and the high seas in our economic interest zone.
During a declared war, they would revert to control by the Navy/DoD.
The cultures are more similar between the USN, USCG, and USAF than they are with the Army and USMC insofar as the former three place a higher degree of focus on the servicemembers as technicians and knowledge workers as opposed to the greater degree of raw soldiering, i.e. being "grunts" as found in the Army and Marines (though through my work with both of those branches, their members are increasingly tasked for a far greater share of knowledge/technical work than ever before).