The U.S. claims to have information indicating that Russia has “already prepositioned a group of operatives to conduct a false-flag operation in eastern Ukraine,” laying the groundwork for a potential pretext to invade, according to a U.S. official.

Why it matters: Diplomatic talks between the U.S., its European allies and Russia failed to produce a breakthrough this week, raising fears that Moscow will invade Ukraine and unleash a devastating new war.

What they’re saying: “The United States is concerned that the Russian Government is preparing for an invasion into Ukraine that may result in widespread human rights violations and war crimes should diplomacy fail to meet their objectives,” the official said.

“As part of its plans, Russia is laying the groundwork to have the option of fabricating a pretext for invasion, including through sabotage activities and information operations, by accusing Ukraine of preparing an imminent attack against Russian forces in eastern Ukraine.”