Russia-Ukraine permanent ceasefire signed before 2027

A permanent ceasefire agreement between Russia and Ukraine is formally signed before December 31, 2026. Resolves YES if credible reporting from Reuters, AP, or BBC confirms both parties have signed a formal ceasefire or peace agreement. Temporary humanitarian pauses or 30-day truces do NOT count. Source of truth: Official statements by Russian and Ukrainian governments, US State Department announcements, and verified by Reuters, AP, and BBC.