Republic of Vietnam Navy

It is the headquarters of Coastal Group Eleven.

The force consists of three American Navy advisors, forty-three men of the South Vietnamese Navy, and seven junk patrol boats.

Each man in the Vietnamese junk force has a tattoo on his chest.

It reads, "Sat Cong." The tattoo means, "Kill Communists." These men are loyal, dependable, and vicious fighters.

He served as a lieutenant in the 27th RVN River Assault Group.

RVN is the Republic of Vietnam Navy.

That's South Vietnam.

So he's an advisor, naval advisor group officer.