José Antonio Kast, the newly elected president of Chile, has marked the commencement of a significant project aimed at curbing irregular immigration by launching the construction of walls and trenches along the northern border. Speaking from the Chacalluta border post, which lies on the border with Peru and 200 kilometers from Bolivia, Kast underscored his administration's commitment to achieving a 'sovereign' Chile by controlling illegal immigration, which he claims has seen over 180,000 people enter the country illegally in recent years. He emphasized the use of heavy machinery in this endeavor, stating that it would help to 'close the window' that he argues has been allowing uncontrolled immigration into the nation.

Kast further elaborated that his initiative, termed the 'Plan Escudo Fronterizo', is not solely focused on constructing physical barriers but also includes a broader strategy with the implementation of observation posts and increased patrols. This plan reflects his right-wing, hardline stance on immigration policy, which resonated with many voters during his campaign. Kast’s approach aims to enhance national security and sovereignty as he believes that uncontrolled immigration poses a threat to the Chilean way of life.

The implications of this policy are significant, potentially impacting bilateral relations with neighboring countries, especially Peru and Bolivia, as these measures may provoke political responses or diplomatic tensions. This construction project is part of a wider trend in Latin America, where several nations are grappling with surging migration and are adopting stricter border controls. The effectiveness and humanitarian implications of Kast's aggressive immigration strategy will be closely scrutinized both within Chile and by international observers.