[DO NOT MERGE] Additional state info

Author: rsyracuse

openapi.yaml

@@ -16394,7 +16394,7 @@ components:
           type: string
           description: >
             If billing address is in the United States (US) or Canada (CA), only the two-letter
-            ISO 3166 State or Province code are accepted. If the address is outside
+            ISO 3166 State or Province code are accepted. If entering a US military address, state abbreviations (AA, AE, AP) should be entered. If the address is outside
             the US or CA, this is the Province associated with the Account's billing
             address.
           maxLength: 24