Soldier
"Just following orders." "For the Fatherland!"
Those are the main reasons why WW2 began in the first place.
"Closely cooperating with the SS and their Einsatzgruppen death squads, the German armed forces committed numerous war crimes (despite later denials and promotion of the myth of the clean Wehrmacht). The majority of the war crimes took place in the Soviet Union, Poland, Yugoslavia, Greece, and Italy, as part of the war of annihilation against the Soviet Union, the Holocaust and Nazi security warfare.
"During World War II about 18 million men served in the Wehrmacht. By the time the war ended in Europe in May 1945, German forces (consisting of the Heer, the Kriegsmarine, the Luftwaffe, the Waffen-SS, the Volkssturm, and foreign collaborator units) had lost approximately 11,300,000 men, about 5,318,000 of whom were missing, killed or died in captivity. Only a few of the Wehrmacht's upper leadership went on trial for war crimes, despite evidence suggesting that more were involved in illegal actions. According to Ian Kershaw, most of the three million Wehrmacht soldiers who invaded the USSR participated in war crimes."1
1: https://en.wikipedia.org/wiki/Wehrmacht
https://en.wikipedia.org/wiki/German_Army_(1935-1945)