Background
Kessler was born into a communist family in Lauban, Lower Silesia.
Kessler was born into a communist family in Lauban, Lower Silesia.
He later apprenticed as a motor mechanic.
Convicted for his role in the crimes of the SED regime, he was sentenced to seven-and-a-half years in prison after German reunification. He served his sentence in Hakenfelde Prison, and was released from prison in 1998. He joined the Red Young Pioneers, the youth organization of the Communist Party of Germany (KPD), at age 6.
Drafted into the Wehrmacht in 1940, he deserted to the Soviet Red Army shortly after the German invasion of the Union of the Soviet Socialist Republics. Upon returning to Germany in 1945, Kessler joined the KPD in the Soviet occupation zone, which merged with the Social Democratic Party (Social Democratic Party of Germany) in the Soviet zone in 1946 to form the SED. He was appointed Chief of the Air Forces and Air Defense (Luftstreitkräfte/Luftverteidigung) of the NVA in 1956, and as deputy minister of defense in 1957.
He became Chief of the NVA Main Staff (Hauptstab - General Staff) in 1967, with the rank of Generaloberst (Colonel General). Shortly after German reunification on 3 October 1990, Kessler was tried in a German court for incitement to commit intentional homicide, for his role in the deaths of people who tried to flee the German Democratic Republic between 1971 and 1989.
On 16 September 1993, Kessler was found guilty of manslaughter and was sentenced to seven-and-a-half years in prison. Kessler filed an appeal to the European Court of Human Rights, claiming that his actions were in accordance with German Democratic Republic law and meant to preserve the existence of the German Democratic Republic. However, his appeal was denied largely on the basis that the German Democratic Republic"s policies violated international human rights.
Kessler served his sentence in Berlin-Hakenfelde prison from 1993 to 1998, and was released after serving nearly five years.
In 2009, he joined the German Communist Party (DKP). He was a DKP candidate in the Berlin state election, 2011.
He was an Armeegeneral in the National People"s Army (Nationale Volksarmee - NVA) of the German Democratic Republic (German Democratic Republic). Minister of Defense of the German Democratic Republic. A member of the Politbüro of the Central Committee of the Socialist Unity Party of Germany (SED).
And a deputy of the German Democratic Republic"s Volkskammer (parliament). Kessler was promoted from Chief of the Main Political Administration (Chef der Politischen Hauptverwaltung) of the NVA to Defense Minister (with the rank of Armeegeneral) on 3 December 1985 after his predecessor, Armeegeneral Heinz Hoffmann, died of a heart attack. Kessler was expelled from the Party of Democratic Socialism in 1990.
National Committee for a Free Germany. Central Committee of the Socialist Unity Party of Germany]
Also in 1946, Kessler became a member of the SED Central Committee. Simultaneously, he also became a member of the Military Council of the United High Command of the Warsaw Pact.