"Jack G" wrote:

Why is it that most United States Air Force planes Have "U. S. AIR FORCE" or
"UNITED STATES AIR FORCE" markings but United States Navy and Marine
Airplanes only have "NAVY" or 'MARINES": Is there an international
agreement that covers this or is it just convention / tradition? Thanks for
any replies.

Service choice. The Army, Marines, and Navy are secure enough to
just use their service name, and let the US insignia say
everything else. The USAF, coming off their USAAF inferiority
complex with the 1947 reorganization of the military services and
establishment of DoD and the USAF independent from the Army, have
demonstrated that inferiority complex proudly for more than 50
years.

Off we go, into the wild blue yonder, flying high while thinking
low ...

--
OJ III