Just before talks about a potential Trump-Ukraine deal, Russia reportedly made four of its most powerful weapons fully operational. These include the nuclear-powered cruise missile Burevestnik, the underwater nuclear drone Poseidon, the intercontinental ballistic missile RS-28 Sarmat, and the hypersonic Oreshnik missile. In this video, we break down what these weapons are, why they’re considered dangerous, and what their activation could mean for Ukraine and the rest of the world.