What is marital union?

yes he is

union welders do the same thing non union welders do. union welders usally get higher pay and better benifites ex. health care vision dental perscriptions and so on

There is no union for veterinarians (or most other medical professionals like medical doctors, pharmacists, etc.). Their professions are specialized requiring an exceptional amount of education,...

Yes.

the union was the north in the civil war.