Ok, so, The idea of country is not clear without clear borders/boundaries. Say, the US-MEXICO border is not clear. then those people who live in the disputed areas can't clearly say whether they are American citizens or Mexican citizens. But, normally my home my home, and your home yours, and you can't just enter into my house without my permission and vice-versa, and that works. But it is not clear about the countries without clear borders,😀☕🎈👍.