They come to a diplomatic agreement by compromise and if they cannot come to an agreement there is war
Europe, (Western)Asia, (North)Africa
Popular sovereignty was also included in Article V of the Constitution, which provides the means to amend the Constitution through the elected representatives of the people.
Deurbanisation is the act of people moving away from urban areas and going rural, it happened in the British period because people saw a flood of British machine made goods and artisans lost their work so they moved back to their villages