Germany has announced the extension of border controls to all nine of its land borders starting September 16, in response to rising irregular migration and extremist threats. The new measures, which will last for six months, come after recent deadly Islamist-linked attacks and significant political pressure following far-right electoral gains. Interior Minister Nancy Faeser emphasized that the controls aim to strengthen internal security and curb migration, sparking criticism from neighboring countries like Poland and Austria, who oppose taking back migrants rejected by Germany. The European Union has cautioned that such measures should be exceptional and proportionate, highlighting their potential to test European unity and the principles of free movement within the Schengen Area.