Conflicts happen in every family but there is a solution to any problem. Let us say a girl from Ukraine arrived to be with you in the USA and there is a misunderstanding. Jump right in and discuss it. Do not delay communication. Sit together and calmly talk. Tell her about your concerns, your reaction and what caused it, ask questions. Try to analyze.
Be patient. Bear in mind that your woman is a newcomer with a language barrier, cultural shock, maybe many nostalgic moments. The way you do the things are new to her, American customs are weird and your family is people she recently met she met. If you see she is sad ask more about it. Tell her you are the best friend and you support and understand her. Do not blame her for not falling in love with your country or not appreciating your family at once. Find out the reasons why she might be skeptical about the country or a family members. Your initiative is important since more probably she will not be willing to talk about embarrassing things. She will acquire more skills and understanding with the time and her attitude will change if she feels she can trust you, you are in her side. Engage your woman in a constant dialogue. It can be almost compared to a psychiatric session but with friendlier appeal. I remember Nick could not stop asking me all sorts of questions until late at night. He said that did not do it because of me but him. First he thoroughly enjoyed my company and second he gathered information about me in order to know me better. He could use this information in our relationship later. Not against me but to help me overcome difficulties and understand me better. Relate to your woman, cheer her up, make her feel safe, confident. Confess the times you failed. It will help to build the bridge, will show her she is not alone when she does mistakes. Compassion is important to stay connected and never let go.