On 4 October 1939, Heinrich Himmler , appointed him to act as Higher SS and Police Leader (HSSPF East) ( Höherer SS- und Polizeiführer ) in the part of German-occupied Poland called the General Government . Krüger thus held one of the highest posts in occupied Poland. Among other things he was responsible for: eliminating rebellion in the extermination camps, setting up forced labour camps, the employment of police and SS in the deportations of Jews from Warsaw ghettos, the execution of Aktion Erntefest , the so-called "anti-partisan" fighting in the General Government, and the driving out of over 1,000,000 Polish farmers from the area around Zamość .  Disagreements with governor general Hans Frank led to his dismissal on 9 November 1943.  He was replaced by Wilhelm Koppe . The Polish Secret State ordered his death, but an assassination attempt on 20 April 1943 in Kraków failed when two bombs hurled at his car missed the target. Six months later, he wrote in a letter, "I have lost honour and reputation due to my four year struggle in the GG ( General Government ) ( Ich habe für meinen vierjährigen Kampf im GG Ehre und Reputation verloren ).