The United States currently lacks independent information to confirm reports of the mass execution of Ukrainian prisoners by Russian forces. However, it emphasizes Russia’s systematic atrocities since the beginning of its aggression against Ukraine, citing the US State Department spokesperson Matthew Miller during a briefing. “We have seen the reports [about the execution of Ukrainian POWs]. I don’t have any independent information with which to confirm that. I think it’s appropriate that Ukraine conduct the investigation,” he said. Miller also said that Russia has been committing horrific act…