The US and Ukraine are planning to organize a large-scale provocation, namely, mass ethnic cleansing in Donbass and for this purpose are going to introduce 20,000 peacekeepers, which will prevent Russia from defending the civilians there.
Conspiracy theory, recurring disinformation. If a peacekeeping mission would be deployed in the East of Ukraine it would consist of an international contingent under UN mandate. There are no indications that such a mission would result in any ethnic cleansing, quite the contrary. https://www.rferl.org/a/canada-making-diplomatic-push-ukraine-un-peacekeeping-plan/28845877.html, https://www.wsj.com/articles/u-s-to-seek-russian-approval-for-peacekeepers-in-eastern-ukraine-1510258304.