come into conflict
To cause tension with someone or something else. I came into conflict with Tiffany when she found out that I had started that rumor about her. I'm sorry, but I just can't support your plan—it comes into conflict with my religious beliefs.
come into conflict
[for things or people] to conflict or to be at odds with one another. The various policies came into conflict at the last moment. Bill and Bob came into conflict over almost everything.