Elon Musk, CEO of Tesla (TSLA) and SpaceX, responded with 'Of course' to a post about Russian President Vladimir Putin's warning of nuclear war readiness against the U.S. if troops are sent to Ukraine. Putin's statement highlights the escalating tensions between Russia and the West, amid the ongoing war in Ukraine. The U.S. has been preparing for a potential Russian nuclear strike, while Russia plans to establish a nuclear power plant on the moon by 2035 in collaboration with China.