The setup is this:
Send troops under the guise of being “peacekeepers”.
When those peacekeepers get attacked, marshal western world outrage to leverage into open warfare.
What goes on behind the scenes:
Those peacekeepers will only enforce a ceasefire one-way. Those troops will act only against Russian aggression, not Ukrainian actions. Ukraine will still wage war, using outside forces as a screen against Russian responses. Ukraine will pass unmolested through western forces, attack, and if necessary retreat back through those western forces. It is likely Ukraine will even stage forces alongside peacekeepers to draw Russian fire.
Peacekeepers are supposed to enforce a ceasefire BOTH ways; this peacekeeping role is mere subterfuge masking the open entry of co-belligerents.
That was my take too. "Peacekeepers."