Is it true that Officers in the Army are more integrated into the Enlisted ranks then in the Navy?

Absolutely!! Army Officers, without a doubt, are more integrated with Soldiers than Navy Officers are with their sailors. A good example is this: One of my BN CDRs and his CSM coordinated to do a day trip, combined with reenlistments of a few troops on a Navy ship. For lunch - the CSM was not allowed to eat lunch with his BC in the Officers area, nor was he allowed to eat with his lower enlisted troops...he had to go to the Chiefs area. Totally blew his mind.

Yes, by design. Back when things were wood, there was a separate mess, billeting, etc. aboard ship basically segregating by class. That methodology carries on today. It also carries on when looking at most bases. The chow hall serves varied ranks, but there are designated areas for officers and NCOs. That changes when out in the field. Everyone is in tents and chows down wherever the slop is slung. We are not the most isolated though. I remember doing combined work overseas. Separation was more strict in Commonwealth units. The Army is getting paid to pound ground and better not be standing still. Hence there's much more merging vs. designated separation. There are always exceptions. Medical types are merged regardless.

Can you give any examples of what you mean?