at loggerheads with / on bad terms with

I think you can use it for countries too:

http://www.globalresearch.ca/index.php?context=viewArticle&code=20061119&articleId=3910

Ahmadinejad, whose own country is at loggerheads with

I think he knew it could be used with countries, but wanted to know if it could apply to individuals, and vice versa.

Two people can be at loggerheads - it means they cannot come to an agreemnt or they can't see "eye to eye" about things. I'm not surprised Jennifer left her job; she and her boss were always at loggerheads.

It would seem that "on bad terms" best applies to

I think both terms can be used either for individuals or for countries. (Certainly countries can be "on good terms" with each other, so why not "on bad terms"?) I do think there is a difference between being "at loggerheads" and being "on bad terms" with someone that might be worth pointing out. Corrrect me if you disagree, but I think that "at loggerheads" implies that neither of the two part

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- at loggerheads adverb (or adjective) : in or into a state of strong antagonistic usually quarrelsome disagreement<at loggerheads with the people of his village -- Harold Hobson> <the story of an energetic subordinate at loggerheads with his superiors -- Times Literary Supplement> <confusions which pu