Original: On March 1, Germany re-integrated the region into the German Reich, appointing Josef Bürckel as Reichskommissar für die Rückgliederung des Saarlandes, "Imperial Commissioner for the re-union of Saarland".
Simplified: On March 1, the Nazi Germany took over the region, and appointed Josef Bürckel as Reichskommissar für die Rückgliederung des Saarlandes, "Reich Commissioner for the re-union of Saarland".