"I want to emphasize that what is at stake here is the ambitions and aggressiveness of Russia. Russia has decided that it is all-in in Syria and they have also decided who they want to see become president of the United States too when it is not me," Clinton said.
She put the blame for sufferings of the Syrian people on Russia, accusing it of destructive bombing of Aleppo.
"There is a determined effort by the Russian air force to destroy Aleppo in order to eliminate the last of the Syrian rebels who are really holding out against the Assad regime. Russia has not paid any attention to ISIS, they are interested in keeping Assad in power," she added.
"But I do support the effort to investigate… war crimes committed by the Syrians and the Russians and try to hold them accountable," Clinton said.