Short answers, pulled from the story.
The Second Jassy, Kishinev offensive began on the 20th of August 1944 and concluded by the 31st of August 1944. The initial breakthrough occurred within two days, leading to the encirclement of German forces near Chișinău.
Army General Rodion Malinovsky commanded the 2nd Ukrainian Front while Army General Fyodor Tolbukhin led the 3rd Ukrainian Front. Major General Andrei Kravchenko directed the 6th Guards Tank Army under Malinovsky's command.
King Michael of Romania deposed Ion Antonescu on the 23rd of August 1944 and withdrew Romania from the Axis alliance. This political shift forced Germany to lose vital oil sources and triggered border hostilities with Hungary over territory ceded in 1940.
Over 115,000 prisoners were captured from Axis forces during the operation. Approximately 2,000 Germans escaped to Hungarian lines across the Carpathians after being confined to pockets around Păulești and Ploiești.
The German Sixth Army failed because Soviet mobile formations executed a double envelopment strategy that cut off retreat into Hungary. The line collapsed within two days, leaving isolated pockets unable to escape or receive reinforcements.