Russia's doomsday flex: Putin rubs Sarmat missile in US' face after failed China diplomacy?

Is Russia preparing to send a nuclear message to the West after Ukraine’s latest strikes inside Moscow? As the war intensifies, the Kremlin is once again placing its Sarmat RS-28 missile system, often referred to as the “Doomsday missile”, at the center of global attention. The timing is raising serious questions. Just days after Donald Trump’s controversial China trip ended without major breakthroughs, Russia unveiled fresh rhetoric around its most powerful strategic weapon. Kremlin spokesperson Dmitry Peskov warned that Russia’s existence “cannot be threatened,” while Moscow highlighted the Sarmat missile’s ability to strike targets anywhere on Earth. From hypersonic glide vehicles to nuclear signaling, this story explores how the Ukraine conflict may be entering a far more dangerous phase, one where diplomacy and nuclear messaging are colliding at the same time.