The work is based on a survey conducted in 2016 on both sides of the US-Mexico border in sister cities. The surprising result of the survey was the discovery of the so-called third nation. People living along the border feel more connected with each other than with the citizens of their own countries. The wall-building project initiated by the United States former president was perceived as a symbol of segregation and discrimination. The work focuses on the connecting points along the border - the border crossings between these sister cities, such as San Ysidro-Tijuana, Calexico and Mexicali, or Progreso and Nuevo Progreso.