Border
A border is an edge or boundary, most frequently of a country. Some countries have a border disputes, a good example of a border dispute is in the Kashmir region divided between Pakistan and India. The longest border between two countries is the United States-Canada border. Closed borders are borders where you can't pass, the Armenia-Turkey border is a so called closed border. There are 65 countries that have build a wall on (some of) their borders. The best known walls are on the Israel-Palestine border, and the United States-Mexico border wich is only partly build at the moment.[1] Another fenomenon are open borders, when a number of countries agree to give full access to civilians and goods of other member states to enter their territory, like in the European Union. Borders can be very complex with enclaves and exclaves, the India-Bangladesh border is an example of a very complex borderline. A famous quote about borders comes from the American president Donald Trump saying that "A nation without borders isn't a nation".